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| molecules [2020/03/10 10:16] – [Molecules in the Interstellar Medium or Circumstellar Shells (as of 02/2020)] mueller | molecules [2025/06/27 14:56] (current) – mueller |
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| ====== Molecules in Space ====== | ====== Molecules in Space ====== |
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| **Note:** Deuterium isotopic species are given separately only if their method of detection is intrinsically different from that of pure hydrogen ones. We plan to modify this in the future to include them with all hydrogen species. | **Note:** Deuterium isotopic species are **not** given separately anymore. |
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| The documentations generally provide information on the detection of the respective molecules, including minor isotopic species, molecules in excited vibrational states, or different media in which the species has been detected as well as links to articles. | The documentations generally provide information on the detection of the respective molecules, including minor isotopic species, molecules in excited vibrational states, or different media in which the species has been detected as well as links to articles. |
| **Note:** Questionable or rebuted detections have been omitted from the table. Some noteworthy cases are given below the table. Tentative detections, which have a reasonable chance to be correct, are indicated by "?". Usually the number of observed transitions that are, at least, fairly free of overlap is small. Some detections that have been reported as secure ones are indicated by "(?)" because (partial) overlap of lines cannot be ruled at the moment or because the line list is somewhat small; obviously, there may be cases on the edge. | **Note:** Questionable or rebuted detections have been omitted from the table. Some noteworthy cases are given below the table. Tentative detections, which have a reasonable chance to be correct, are indicated by "?". Usually the number of observed transitions that are, at least, fairly free of overlap is small. Some detections that have been reported as secure ones are indicated by "(?)" because (partial) overlap of lines cannot be ruled at the moment or because the line list is somewhat small; obviously, there may be cases on the edge. |
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| As the decision whether a molecule can be considered as detected frequently is a controversial one we refrain from stating an exact number of molecules as detected. As of **November 2018**, 209 molecules have been detected in the interstellar medium or circumstellar shells; at least five of these are tentative detections, and for about five others, the situation is uncertain or a secure detection was called into question. Including some molecules missing (mainly metal compounds outside stellar atmospheres) in the table, the number of molecules detected in the ISM or in CSEs at least 199. Thus, we recommend phrases such as "**around 200 molecules** have been detected in the **interstellar medium or circumstellar shells**". Two reported detections have been questioned seriously. Therefore, these are viewed currently as "probably not yet detected" – see below. They do not show up in the table anymore. | As the decision whether a molecule can be considered as detected frequently is a controversial one we refrain from stating an exact number of molecules as detected. As of **June 2025**, 334 molecules are listed in the section of interstellar or circumstellar molecules. Only few of these are tentative or somewhat uncertain. The number takes into account the questioning of the detection of //E//-1-cyano-1,3-butadiene. On the other hand some molecules are still missing (mainly metal compounds outside stellar atmospheres) in the table. Thus, we recommend phrases such as "**about 330 molecules** have been detected in the **interstellar medium or circumstellar shells**". Two reported detections have been questioned seriously. Therefore, these are viewed currently as "probably not yet detected" – see below. They do not show up in the table anymore. |
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| The number of molecules detected in extragalactic sources is 62 including one tentative detection. More may have to be added. | The number of molecules detected in extragalactic sources is **74** including three tentative detections. More may have to be added. The list includes protonated acetylene, C<sub>2</sub>H<sub>3</sub><sup>+</sup>, the first molecule detected in an extragalactic source, but not in a galactic source. The first species detected in an extragalactic but not galactic source is <sup>34</sup>SH<sup>+</sup> also in this peculiar foreground galaxy. |
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| We welcome comments on this list! | We welcome comments on this list! |
| ===== Molecules in the Interstellar Medium or Circumstellar Shells (as of 02/2020) ===== | ===== Molecules in the Interstellar Medium or Circumstellar Shells (as of 06/2025) ===== |
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| ^2 atoms ^3 atoms ^4 atoms ^5 atoms ^6 atoms ^7 atoms ^8 atoms ^9 atoms ^10 atoms ^11 atoms ^12 atoms ^>12 atoms ^ | ^2 atoms ^3 atoms ^4 atoms ^5 atoms ^6 atoms ^7 atoms ^8 atoms ^9 atoms ^10 atoms ^11 atoms ^12 atoms ^>12 atoms ^ |
| | H<sub>2</sub> | [[molecules:ism:C3|C]]<sub>3</sub>* | [[molecules:ism:c-C3H | c-C]]<sub>3</sub>H | [[molecules:ism:C5 |C]]<sub>5</sub>* | [[molecules:ism:C5H|C]]<sub>5</sub>H | [[molecules:ism:C6H| C]]<sub>6</sub>H | [[molecules:ism:MeC3N|CH]]<sub>3</sub>C<sub>3</sub>N |[[molecules:ism:ch3c4h|CH]]<sub>3</sub>C<sub>4</sub>H | [[molecules:ism:MeC5N|CH]]<sub>3</sub>C<sub>5</sub>N | [[molecules:ism:HC9N|HC]]<sub>9</sub>N | [[molecules:ism:benzol|c-C]]<sub>6</sub>H<sub>6</sub>* | [[molecules:ism:Fullerene#C60|C]]<sub>60</sub>* | | | [[molecules:ism:CH-plus|CH]]<sup>+</sup> | [[molecules:ism:C3|C]]<sub>3</sub>* | [[molecules:ism:c-C3H | c-C]]<sub>3</sub>H | [[molecules:ism:C5 |C]]<sub>5</sub>* | [[molecules:ism:C5H|C]]<sub>5</sub>H | [[molecules:ism:C6H| C]]<sub>6</sub>H | [[molecules:ism:MeC3N|CH]]<sub>3</sub>C<sub>3</sub>N |[[molecules:ism:ch3c4h|CH]]<sub>3</sub>C<sub>4</sub>H | [[molecules:ism:MeC5N|CH]]<sub>3</sub>C<sub>5</sub>N | [[molecules:ism:HC9N|HC]]<sub>9</sub>N | [[molecules:ism:benzol|c-C]]<sub>6</sub>H<sub>6</sub>* | [[molecules:ism:Fullerene#C60|C]]<sub>60</sub>* | |
| |AlF|[[molecules:ism:C2H|C]]<sub>2</sub>H | [[molecules:ism:l-C3H|l-C]]<sub>3</sub>H | [[molecules:ism:C4H|C]]<sub>4</sub>H|[[molecules:ism:l-C4H2|l-H]]<sub>2</sub>C<sub>4</sub> | [[molecules:ism:VCN|CH]]<sub>2</sub>CHCN|[[molecules:ism:Methylformiat|HC(O)OCH]]<sub>3</sub> | [[molecules:ism:EtCN|CH]]<sub>3</sub>CH<sub>2</sub>CN|[[molecules:ism:Aceton|(CH]]<sub>3</sub>)<sub>2</sub>CO | [[molecules:ism:ch3c6h|CH]]<sub>3</sub>C<sub>6</sub>H|[[molecules:ism:PrCN#on_the_detection_of_n-propyl_cyanide_in_space|n-C]]<sub>3</sub>H<sub>7</sub>CN | [[molecules:ism:Fullerene#C70|C]]<sub>70</sub>*| | | CH | [[molecules:ism:C2H|C]]<sub>2</sub>H | [[molecules:ism:l-C3H|l-C]]<sub>3</sub>H | [[molecules:ism:C4H|C]]<sub>4</sub>H|[[molecules:ism:l-C4H2|l-H]]<sub>2</sub>C<sub>4</sub> | [[molecules:ism:VCN|CH]]<sub>2</sub>CHCN | [[molecules:ism:Methylformiat|HC(O)OCH]]<sub>3</sub> | [[molecules:ism:EtCN|CH]]<sub>3</sub>CH<sub>2</sub>CN| [[molecules:ism:Aceton|(CH]]<sub>3</sub>)<sub>2</sub>CO | [[molecules:ism:ch3c6h|CH]]<sub>3</sub>C<sub>6</sub>H| [[molecules:ism:PrCN#on_the_detection_of_n-propyl_cyanide_in_space|n-C]]<sub>3</sub>H<sub>7</sub>CN | [[molecules:ism:Fullerene#C70|C]]<sub>70</sub>*| |
| |AlCl | [[molecules:ism:CCO|C]]<sub>2</sub>O | C<sub>3</sub>N | [[molecules:ism:C4Si|C]]<sub>4</sub>Si | C<sub>2</sub>H<sub>4</sub>*|[[molecules:ism:Propin|CH]]<sub>3</sub>C<sub>2</sub>H | [[molecules:ism:HAc|CH]]<sub>3</sub>COOH | [[molecules:ism:DME|(CH]]<sub>3</sub>)<sub>2</sub>O | [[molecules:ism:glycol|(CH]]<sub>2</sub>OH)<sub>2</sub> | [[molecules:ism:Ethylformiat|C]]<sub>2</sub>H<sub>5</sub>OCHO | [[molecules:ism:PrCN#on_the_detection_of_i-propyl_cyanide_in_space|i-C]]<sub>3</sub>H<sub>7</sub>CN | [[molecules:ism:C60-plus|C]]<sub>60</sub><sup>+</sup>* | | | CN | [[molecules:ism:c_no|C]]<sub>2</sub>O | C<sub>3</sub>N | [[molecules:ism:C4Si|C]]<sub>4</sub>Si | C<sub>2</sub>H<sub>4</sub>*|[[molecules:ism:Propin|CH]]<sub>3</sub>C<sub>2</sub>H | [[molecules:ism:HAc|CH]]<sub>3</sub>COOH | [[molecules:ism:DME|(CH]]<sub>3</sub>)<sub>2</sub>O | [[molecules:ism:glycol|(CH]]<sub>2</sub>OH)<sub>2</sub> | [[molecules:ism:Ethylformiat|C]]<sub>2</sub>H<sub>5</sub>OCHO | [[molecules:ism:PrCN#on_the_detection_of_i-propyl_cyanide_in_space|i-C]]<sub>3</sub>H<sub>7</sub>CN | [[molecules:ism:C60-plus|C]]<sub>60</sub><sup>+</sup>* | |
| |C<sub>2</sub>%%**%% | [[molecules:ism:C2_3S|C]]<sub>2</sub>S | C<sub>3</sub>O | [[molecules:ism:l-C3H2|l-C]]<sub>3</sub>H<sub>2</sub>|[[molecules:ism:MeCN|CH]]<sub>3</sub>CN | [[molecules:ism:HC5N|HC]]<sub>5</sub>N | [[molecules:ism:C7H|C]]<sub>7</sub>H | [[molecules:ism:EtOH|CH]]<sub>3</sub>CH<sub>2</sub>OH | [[molecules:ism:c3_aldehydes|CH]]<sub>3</sub>CH<sub>2</sub>CHO | [[molecules:ism:MeAc|CH]]<sub>3</sub>OC(O)CH<sub>3</sub> | [[molecules:ism:EME|C]]<sub>2</sub>H<sub>5</sub>OCH<sub>3</sub> |[[molecules:ism:PhCN|c-C]]<sub>6</sub>H<sub>5</sub>CN | | | OH | [[molecules:ism:C2_3S|C]]<sub>2</sub>S | [[molecules:ism:c_no#oxopropadienylidene, c<sub>3</sub>o|C]]<sub>3</sub>O | [[molecules:ism:l-C3H2|l-C]]<sub>3</sub>H<sub>2</sub>|[[molecules:ism:MeCN|CH]]<sub>3</sub>CN | [[molecules:ism:HC5N|HC]]<sub>5</sub>N | [[molecules:ism:C7H|C]]<sub>7</sub>H | [[molecules:ism:EtOH|CH]]<sub>3</sub>CH<sub>2</sub>OH | [[molecules:ism:c3_aldehydes|CH]]<sub>3</sub>CH<sub>2</sub>CHO | [[molecules:ism:MeAc|CH]]<sub>3</sub>OC(O)CH<sub>3</sub> | [[molecules:ism:EME|C]]<sub>2</sub>H<sub>5</sub>OCH<sub>3</sub> |[[molecules:ism:PhCN|c-C]]<sub>6</sub>H<sub>5</sub>CN | |
| |CH | [[molecules:ism:CH2|CH]]<sub>2</sub> | [[molecules:ism:C2_3S|C]]<sub>3</sub>S | [[molecules:ism:c-C3H2|c-C]]<sub>3</sub>H<sub>2</sub> | [[molecules:ism:MeNC|CH]]<sub>3</sub>NC | [[molecules:ism:MeCHO|CH]]<sub>3</sub>CHO | [[molecules:ism:C6H2|C]]<sub>6</sub>H<sub>2</sub> | [[molecules:ism:HC7N|HC]]<sub>7</sub>N | [[molecules:ism:Methyloxiran|CH]]<sub>3</sub>CHCH<sub>2</sub>O | | | | | | CO | [[molecules:ism:CH2|CH]]<sub>2</sub> | [[molecules:ism:C2_3S|C]]<sub>3</sub>S | [[molecules:ism:c-C3H2|c-C]]<sub>3</sub>H<sub>2</sub> | [[molecules:ism:MeNC|CH]]<sub>3</sub>NC | [[molecules:ism:MeCHO|CH]]<sub>3</sub>CHO | [[molecules:ism:C6H2|C]]<sub>6</sub>H<sub>2</sub> | [[molecules:ism:HC7N|HC]]<sub>7</sub>N | [[molecules:ism:Methyloxiran|CH]]<sub>3</sub>CHCH<sub>2</sub>O | [[molecules:ism:Hydroxyaceton|CH]]<sub>3</sub>C(O)CH<sub>2</sub>OH | [[molecules:ism:Cyanocyclopentadien|1-c-C]]<sub>5</sub>H<sub>5</sub>CN | [[molecules:ism:HC11N|HC]]<sub>11</sub>N | |
| |[[molecules:ism:CH-plus|CH]]<sup>+</sup> | [[molecules:ism:HCN|HCN]] | [[molecules:ism:HC2nH#HC2H|C]]<sub>2</sub>H<sub>2</sub>* | [[molecules:ism:H2CCN|H]]<sub>2</sub>CCN | CH<sub>3</sub>OH | [[molecules:ism:MeNH2|CH]]<sub>3</sub>NH<sub>2</sub> | [[molecules:ism:glycolaldehyd|CH]]<sub>2</sub>OHCHO | [[molecules:ism:C8H|C]]<sub>8</sub>H | [[molecules:ism:Methoxymethanol|CH]]<sub>3</sub>OCH<sub>2</sub>OH | | | | | | H<sub>2</sub> | [[molecules:ism:HCN|HCN]] | [[molecules:ism:HC2nH#HC2H|C]]<sub>2</sub>H<sub>2</sub>* | [[molecules:ism:H2CCN|H]]<sub>2</sub>CCN | [[molecules:ism:CH3OH|CH]]<sub>3</sub>OH | [[molecules:ism:MeNH2|CH]]<sub>3</sub>NH<sub>2</sub> | [[molecules:ism:glycolaldehyd|CH]]<sub>2</sub>OHCHO | [[molecules:ism:C8H|C]]<sub>8</sub>H | [[molecules:ism:Methoxymethanol|CH]]<sub>3</sub>OCH<sub>2</sub>OH | [[molecules:ism:Cyclopentadien|c-C]]<sub>5</sub>H<sub>6</sub> | [[molecules:ism:Cyanocyclopentadien|2-c-C]]<sub>5</sub>H<sub>5</sub>CN | [[molecules:ism:Cyanonaphtalin|1-C]]<sub>10</sub>H<sub>7</sub>CN | |
| |CN | [[molecules:ism:HCO|HCO]] | [[molecules:ism:ammoniak|NH]]<sub>3</sub> | CH<sub>4</sub>* |[[molecules:ism:MeSH|CH]]<sub>3</sub>SH | [[molecules:ism:Oxiran|c-C]]<sub>2</sub>H<sub>4</sub>O |[[molecules:ism:HC2nH#HC4_6H|l-HC]]<sub>6</sub>H* | [[molecules:ism:Acetamid|CH]]<sub>3</sub>C(O)NH<sub>2</sub>| | | | | | | [[molecules:ism:SiO|SiO]] | [[molecules:ism:HCO|HCO]] | [[molecules:ism:ammoniak|NH]]<sub>3</sub> | CH<sub>4</sub>* |[[molecules:ism:MeSH|CH]]<sub>3</sub>SH | [[molecules:ism:Oxiran|c-C]]<sub>2</sub>H<sub>4</sub>O |[[molecules:ism:HC2nH#HC4_6H|l-HC]]<sub>6</sub>H* | [[molecules:ism:Acetamid|CH]]<sub>3</sub>C(O)NH<sub>2</sub>| [[molecules:ism:benzyne|c-C]]<sub>6</sub>H<sub>4</sub> | [[molecules:ism:Ethanolamin|HOCH]]<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub> | [[molecules:ism:MeC7N|CH]]<sub>3</sub>C<sub>7</sub>N (?) | [[molecules:ism:Cyanonaphtalin|2-C]]<sub>10</sub>H<sub>7</sub>CN | |
| |CO | [[molecules:ism:HCO-plus|HCO]]<sup>+</sup> | [[molecules:ism:HCCN_etc|HCCN]] | HC<sub>3</sub>N |[[molecules:ism:HC3NH-plus|HC]]<sub>3</sub>NH<sup>+</sup> | [[molecules:ism:VyOH|H]]<sub>2</sub>CCHOH (?) | [[molecules:ism:c3_aldehydes|CH]]<sub>2</sub>CHCHO(?) | [[molecules:ism:C8H-minus|C]]<sub>8</sub>H<sup>-</sup> | | | | | | | CS | [[molecules:ism:HCO-plus|HCO]]<sup>+</sup> | [[molecules:ism:HCCN_etc|HCCN]] | HC<sub>3</sub>N |[[molecules:ism:HC3NH-plus|HC]]<sub>3</sub>NH<sup>+</sup> | [[molecules:ism:VyOH|H]]<sub>2</sub>CCHOH | [[molecules:ism:c3_aldehydes|CH]]<sub>2</sub>CHCHO | [[molecules:ism:C8H-minus|C]]<sub>8</sub>H<sup>−</sup> | [[molecules:ism:C6H3N|H]]<sub>2</sub>CCCHC<sub>3</sub>N | [[molecules:ism:C7H4|H]]<sub>2</sub>CCCHC<sub>4</sub>H | [[molecules:ism:PrOH|n-C]]<sub>3</sub>H<sub>7</sub>OH | [[molecules:ism:Inden|c-C]]<sub>9</sub>H<sub>8</sub> | |
| |[[molecules:ism:CO-plus|CO]]<sup>+</sup> | [[molecules:ism:HCS-plus|HCS]]<sup>+</sup> | [[molecules:ism:HCNH-plus|HCNH]]<sup>+</sup> | [[molecules:ism:HCCNC|HC]]<sub>2</sub>NC | [[molecules:ism:c3_aldehydes|HC]]<sub>2</sub>CHO |[[molecules:ism:C6H-minus|C]]<sub>6</sub>H<sup>-</sup> | [[molecules:ism:Cyanoallen|CH]]<sub>2</sub>CCHCN |[[molecules:ism:C3H6|C]]<sub>3</sub>H<sub>6</sub> | | | | | | | SO | [[molecules:ism:HCS-plus|HCS]]<sup>+</sup> | [[molecules:ism:HCNH-plus|HCNH]]<sup>+</sup> | [[molecules:ism:HCCNC|HCCNC]] | [[molecules:ism:c3_aldehydes|HCCCHO]] | [[molecules:ism:C6H-minus|C]]<sub>6</sub>H<sup>−</sup> | [[molecules:ism:Cyanoallen|CH]]<sub>2</sub>CCHCN | [[molecules:ism:C3H6|C]]<sub>3</sub>H<sub>6</sub> | [[molecules:ism:EtNCO|C]]<sub>2</sub>H<sub>5</sub>NCO | [[molecules:ism:C10H-|C]]<sub>10</sub>H<sup>−</sup> | [[molecules:ism:PrOH|i-C]]<sub>3</sub>H<sub>7</sub>OH | [[molecules:ism:c-C5H5CCH|1-c-C]]<sub>5</sub>H<sub>5</sub>CCH | |
| |[[molecules:ism:CP|CP]] | HOC<sup>+</sup> | [[molecules:ism:HCNO|HNCO]] | [[molecules:ism:Formic_Acid|HCOOH]] |[[molecules:ism:Formamid|NH]]<sub>2</sub>CHO | [[molecules:ism:MeNCO|CH]]<sub>3</sub>NCO | [[molecules:ism:AAN|H]]<sub>2</sub>NCH<sub>2</sub>CN | [[molecules:ism:EtSH|CH]]<sub>3</sub>CH<sub>2</sub>SH(?) | | | | | | | [[molecules:ism:SiS|SiS]] | HOC<sup>+</sup> | [[molecules:ism:HCNO|HNCO]] | [[molecules:ism:Formic_Acid|HCOOH]] | [[molecules:ism:Formamid|NH]]<sub>2</sub>CHO | [[molecules:ism:MeNCO|CH]]<sub>3</sub>NCO | [[molecules:ism:AAN|H]]<sub>2</sub>NCH<sub>2</sub>CN | [[molecules:ism:EtSH|CH]]<sub>3</sub>CH<sub>2</sub>SH | [[molecules:ism:VyNH2|C]]<sub>2</sub>H<sub>5</sub>NH<sub>2</sub> (?) | [[molecules:ism:BD-E1CN|H]]<sub>2</sub>C(CH)<sub>3</sub>CN ?| [[molecules:ism:Isobuten|(CH]]<sub>3</sub>)<sub>2</sub>C=CH<sub>2</sub> | [[molecules:ism:c-C5H5CCH|2-c-C]]<sub>5</sub>H<sub>5</sub>CCH | |
| |[[molecules:ism:SiC|SiC]] | [[molecules:ism:H2O|H]]<sub>2</sub>O | [[molecules:ism:HCNS#isothiocyanic_acid|HNCS]] |[[molecules:ism:H2CNH|H]]<sub>2</sub>CNH | [[molecules:ism:c5n|C]]<sub>5</sub>N | [[molecules:ism:HC_nO|HC]]<sub>5</sub>O | [[molecules:ism:Ethanimin|CH]]<sub>3</sub>CHNH | [[molecules:ism:N-MeFo|CH]]<sub>3</sub>NHCHO | | | | | | | [[molecules:ism:NS|NS]] | [[molecules:ism:H2O|H]]<sub>2</sub>O | [[molecules:ism:HCNS#isothiocyanic_acid|HNCS]] | [[molecules:ism:H2CNH|H]]<sub>2</sub>CNH | [[molecules:ism:c5n|C]]<sub>5</sub>N | [[molecules:ism:HC_nO|HC]]<sub>5</sub>O | [[molecules:ism:Ethanimin|CH]]<sub>3</sub>CHNH | [[molecules:ism:N-MeFo|CH]]<sub>3</sub>NHCHO | [[molecules:ism:HC7NH-plus|HC]]<sub>7</sub>NH<sup>+</sup> | | | [[molecules:ism:ECP|c-C]]<sub>5</sub>H<sub>4</sub>CCH<sub>2</sub> | |
| |[[molecules:ism:HCl|HCl]] | [[molecules:ism:H2S|H]]<sub>2</sub>S | [[molecules:ism:HOCO-plus|HOCO]]<sup>+</sup> |[[molecules:ism:H2CCO|H]]<sub>2</sub>C<sub>2</sub>O | [[molecules:ism:HC2nH#HC4_6H|l-HC]]<sub>4</sub>H* |[[molecules:ism:HAN|HOCH]]<sub>2</sub>CN (2019) | [[molecules:ism:MeSiH3|CH]]<sub>3</sub>SiH<sub>3</sub> |[[molecules:ism:HC_nO|HC]]<sub>7</sub>O | | | | | | | C<sub>2</sub>%%**%% | [[molecules:ism:H2S|H]]<sub>2</sub>S | [[molecules:ism:HOCO-plus|HOCO]]<sup>+</sup> |[[molecules:ism:H2CCO|H]]<sub>2</sub>C<sub>2</sub>O | [[molecules:ism:HC2nH#HC4_6H|l-HC]]<sub>4</sub>H* |[[molecules:ism:HAN|HOCH]]<sub>2</sub>CN | [[molecules:ism:MeSiH3|CH]]<sub>3</sub>SiH<sub>3</sub> | [[molecules:ism:HC_nO|HC]]<sub>7</sub>O | [[molecules:ism:C3H5CN|E-CH]]<sub>3</sub>CHCHCN | | | [[molecules:ism:Cyanoinden|2-C]]<sub>9</sub>H<sub>7</sub>CN | |
| |KCl | [[molecules:ism:HNC|HNC]] | [[molecules:ism:H2CO|H]]<sub>2</sub>CO | [[molecules:ism:Cyanamid|H]]<sub>2</sub>NCN |[[molecules:ism:HCCN_etc|l-HC]]<sub>4</sub>N | | [[molecules:ism:Harnstoff|H]]<sub>2</sub>NC(O)NH<sub>2</sub> (2019) | | | | | | | | NO | [[molecules:ism:HNC|HNC]] | [[molecules:ism:H2CO|H]]<sub>2</sub>CO | [[molecules:ism:Cyanamid|H]]<sub>2</sub>NCN | [[molecules:ism:HCCN_etc|l-HC]]<sub>4</sub>N | [[molecules:ism:Iminopropin|HCCCHNH]] | [[molecules:ism:Harnstoff|H]]<sub>2</sub>NC(O)NH<sub>2</sub> | [[molecules:ism:C5H3N-Isomere|HCCCHCHCN]] | [[molecules:ism:C3H5CN|Z-CH]]<sub>3</sub>CHCHCN | | | [[molecules:ism:PhCCH|C]]<sub>6</sub>H<sub>5</sub>CCH | |
| |[[molecules:ism:NH|NH]] | HNO | H<sub>2</sub>CN | [[molecules:ism:HNC3|HNC]]<sub>3</sub> | [[molecules:ism:Cyclopropenon|c-H]]<sub>2</sub>C<sub>3</sub>O| | | | | | | | | | [[molecules:ism:HCl|HCl]] | HNO | [[molecules:ism:H2CN|H]]<sub>2</sub>CN | [[molecules:ism:HNC3|HNC]]<sub>3</sub> | [[molecules:ism:Cyclopropenon|c-H]]<sub>2</sub>C<sub>3</sub>O | [[molecules:ism:HC4NC|HC]]<sub>4</sub>NC | [[molecules:ism:3B|HCCCH]]<sub>2</sub>CN | [[molecules:ism:C5H3N-Isomere|H]]<sub>2</sub>CCHC<sub>3</sub>N | [[molecules:ism:C3H5CN|CH]]<sub>3</sub>C(CN)CH<sub>2</sub> | | | [[molecules:ism:Methoxyethanol|CH]]<sub>3</sub>OCH<sub>2</sub>CH<sub>2</sub>OH (2024)| |
| |NO | [[molecules:ism:MNC_MCN#MgCN|MgCN]] | [[molecules:ism:H2CS|H]]<sub>2</sub>CS | [[molecules:ism:SiH4|SiH]]<sub>4</sub>* |[[molecules:ism:Ethenimin|H]]<sub>2</sub>CCNH (?) | | | | | | | | | | NaCl | [[molecules:ism:MNC_MCN#MgCN|MgCN]] | [[molecules:ism:H2CS|H]]<sub>2</sub>CS | [[molecules:ism:SiH4|SiH]]<sub>4</sub>* | [[molecules:ism:Ethenimin|H]]<sub>2</sub>CCNH | [[molecules:ism:Ethynylcyclopropenylidene|c-C]]<sub>3</sub>HCCH | [[molecules:ism:Butadiynyliminomethylium|HC]]<sub>5</sub>NH<sup>+</sup> | [[molecules:ism:C5H4|H]]<sub>2</sub>CCCHCCH | [[molecules:ism:C3H5CN|CH]]<sub>2</sub>CHCH<sub>2</sub>CN | | | [[molecules:ism:Cyanoacenaphtalin|1-C]]<sub>12</sub>H<sub>7</sub>CN (2024) | |
| |[[molecules:ism:NS|NS]] | [[molecules:ism:MNC_MCN#MgNC|MgNC]] | [[molecules:ism:H3O-plus|H]]<sub>3</sub>O<sup>+</sup> | [[molecules:ism:Hydroxymethylium|H]]<sub>2</sub>COH<sup>+</sup> | [[molecules:ism:C5N-minus|C]]<sub>5</sub>N<sup>-</sup> | | | | | | | | | KCl | [[molecules:ism:MNC_MCN#MgNC|MgNC]] | [[molecules:ism:H3O-plus|H]]<sub>3</sub>O<sup>+</sup> | [[molecules:ism:Hydroxymethylium|H]]<sub>2</sub>COH<sup>+</sup> | [[molecules:ism:C5N-minus|C]]<sub>5</sub>N<sup>−</sup> | [[molecules:ism:H2C5|l-H]]<sub>2</sub>C<sub>5</sub> | [[molecules:ism:C4H4|CH]]<sub>2</sub>CHCCH | [[molecules:ism:hydroxypropenal|HOCHCHCHO]] (2024) | [[molecules:ism:Glykolamid|HOCH]]<sub>2</sub>C(O)NH<sub>2</sub> | | | [[molecules:ism:Cyanoacenaphtalin|5-C]]<sub>12</sub>H<sub>7</sub>CN (2024) | |
| |NaCl | N<sub>2</sub>H<sup>+</sup> | [[molecules:ism:SiC3|c-SiC]]<sub>3</sub> | [[molecules:ism:C4H-minus|C]]<sub>4</sub>H<sup>-</sup> | [[molecules:ism:Cyanomethanimin|HNCHCN]] | | | | | | | | | | AlCl | N<sub>2</sub>H<sup>+</sup> | [[molecules:ism:SiC3|c-SiC]]<sub>3</sub> | [[molecules:ism:C4H-minus|C]]<sub>4</sub>H<sup>−</sup> | [[molecules:ism:Cyanomethanimin|HNCHCN]] | [[molecules:ism:mgc3n|MgC]]<sub>5</sub>N | [[molecules:ism:mgc2_4h|MgC]]<sub>6</sub>H | [[molecules:ism:HCxN-plus|HC]]<sub>7</sub>N<sup>+</sup> (2024) | [[molecules:ism:Butin|CH]]<sub>3</sub>CH<sub>2</sub>CCH (2024) | | | [[molecules:ism:Cyanopyren|1-C]]<sub>16</sub>H<sub>9</sub>CN (2024) | |
| |OH | N<sub>2</sub>O | CH<sub>3</sub>* | [[molecules:ism:HCOCN|HC(O)CN]] | [[molecules:ism:SiH3CN|SiH]]<sub>3</sub>CN | | | | | | | | | | AlF | N<sub>2</sub>O | CH<sub>3</sub>* | [[molecules:ism:HCOCN|HC(O)CN]] | [[molecules:ism:SiH3CN|SiH]]<sub>3</sub>CN | [[molecules:ism:cyanopropargyl|CH]]<sub>2</sub>C<sub>3</sub>N | [[molecules:ism:VyNH2|C]]<sub>2</sub>H<sub>3</sub>NH<sub>2</sub> | [[molecules:ism:C5H4|CH]]<sub>2</sub>(CCH)<sub>2</sub> (2024 | | | | [[molecules:ism:Cyanopyren|2-C]]<sub>16</sub>H<sub>9</sub>CN (2025) | |
| |[[molecules:ism:PN|PN]] | [[molecules:ism:MNC_MCN#nacn|NaCN]] | [[molecules:ism:C3N-minus|C]]<sub>3</sub>N<sup>-</sup>|[[molecules:ism:HNCNH|HNCNH]] | [[molecules:ism:C2_3S#information_on_thioxopentatetraenylidene_c5s|C]]<sub>5</sub>S (?)| | | | | | | | | | [[molecules:ism:PN|PN]] | [[molecules:ism:MNC_MCN#nacn|NaCN]] | [[molecules:ism:C3N-minus|C]]<sub>3</sub>N<sup>−</sup>|[[molecules:ism:HNCNH|HNCNH]] | [[molecules:ism:C2_3S#information_on_thioxopentatetraenylidene_c5s|C]]<sub>5</sub>S | [[molecules:ism:NC4NH-plus|NC]]<sub>4</sub>NH<sup>+</sup> | [[molecules:ism:Ethendiol|(CHOH)]]<sub>2</sub> | [[molecules:ism:DMS|(CH]]<sub>3</sub>)<sub>2</sub>S (2025) | | | | [[molecules:ism:Cyanopyren|4-C]]<sub>16</sub>H<sub>9</sub>CN (2025) | |
| |SO | OCS | [[molecules:ism:PH3|PH]]<sub>3</sub> | [[molecules:ism:MeO|CH]]<sub>3</sub>O| [[molecules:ism:MgC2_4H|MgC]]<sub>4</sub>H (2019) | | | | | | | | | | [[molecules:ism:SiC|SiC]] | OCS | [[molecules:ism:PH3|PH]]<sub>3</sub> | [[molecules:ism:MeO|CH]]<sub>3</sub>O| [[molecules:ism:MgC2_4H|MgC]]<sub>4</sub>H | [[molecules:ism:MgC2nH-plus|MgC]]<sub>5</sub>N<sup>+</sup> | [[molecules:ism:other_C6H2|HC]]<sub>2</sub>(H)C<sub>4</sub> | | | | | [[molecules:ism:Cyanocoronen|C]]<sub>24</sub>H<sub>11</sub>CN (2025) | |
| |SO<sup>+</sup> | SO<sub>2</sub> | [[molecules:ism:hcno#fulminic_acid|HCNO]] | [[molecules:ism:Ammonium|NH]]<sub>4</sub><sup>+</sup>| | | | | | | | | | | [[molecules:ism:CP|CP]] | SO<sub>2</sub> | [[molecules:ism:hcno#fulminic_acid|HCNO]] | [[molecules:ism:Ammonium|NH]]<sub>4</sub><sup>+</sup> | [[molecules:ism:CH3CO+|CH]]<sub>3</sub>CO<sup>+</sup> | [[molecules:ism:HCxN-plus|HC]]<sub>5</sub>N<sup>+</sup> (2024) | [[molecules:ism:C7N-|C]]<sub>7</sub>N<sup>−</sup> | | | | | | |
| |[[molecules:ism:SiN|SiN]] | [[molecules:ism:SiC2|c-SiC]]<sub>2</sub> | [[molecules:ism:hcno#cyanic_acid|HOCN]] | [[molecules:ism:H2NCO-plus|H]]<sub>2</sub>NCO<sup>+</sup>| | | | | | | | | | | [[molecules:ism:NH|NH]] | [[molecules:ism:SiC2|c-SiC]]<sub>2</sub> | [[molecules:ism:hcno#cyanic_acid|HOCN]] | [[molecules:ism:H2NCO-plus|H]]<sub>2</sub>NCO<sup>+</sup>| [[molecules:ism:C3H3|C]]<sub>3</sub>H<sub>3</sub> | [[molecules:ism:HNC5|HNC]]<sub>5</sub> (2024)| [[molecules:ism:CH3CHCO|CH]]<sub>3</sub>CHCO | | | | | | |
| |[[molecules:ism:SiO|SiO]] | CO<sub>2</sub>* | [[molecules:ism:HCNS#thiocyanic_acid|HSCN]] | [[molecules:ism:NCCNH-plus|NCCNH]]<sup>+</sup> | | | | | | | | | | | [[molecules:ism:SiN|SiN]] | CO<sub>2</sub>* | [[molecules:ism:HCNS#thiocyanic_acid|HSCN]] | [[molecules:ism:NCCNH-plus|NCCNH]]<sup>+</sup> | [[molecules:ism:H2C_nS|H]]<sub>2</sub>C<sub>3</sub>S | [[molecules:ism:Dicyanide|CH]]<sub>2</sub>(CN)<sub>2</sub> (2024 | [[molecules:ism:MgC2nH-plus|MgC]]<sub>6</sub>H<sup>+</sup> | | | | | | |
| |[[molecules:ism:SiS|SiS]] | [[molecules:ism:NH2|NH]]<sub>2</sub> | [[molecules:ism:H2O2|H]]<sub>2</sub>O<sub>2</sub> | [[molecules:ism:MeX|CH]]<sub>3</sub>Cl | | | | | | | | | | | SO<sup>+</sup> | [[molecules:ism:NH2|NH]]<sub>2</sub> | [[molecules:ism:H2O2|H]]<sub>2</sub>O<sub>2</sub> | [[molecules:ism:MeX|CH]]<sub>3</sub>Cl | [[molecules:ism:HC2CHS|HCCCHS]] | [[molecules:ism:cyanopropargyl|HCCCHCN]] (2025) | [[molecules:ism:Dicyanide|Z-(CH)]]<sub>2</sub>(CN)<sub>2</sub> (2024 | | | | | | |
| |CS | [[molecules:ism:H3-plus|H]]<sub>3</sub><sup>+(*)</sup> | [[molecules:ism:C3H-plus|C]]<sub>3</sub>H<sup>+</sup> | [[molecules:ism:MgC3N|MgC]]<sub>3</sub>N (2019) | | | | | | | | | | | [[molecules:ism:CO-plus|CO]]<sup>+</sup> | [[molecules:ism:H3-plus|H]]<sub>3</sub><sup>+(*)</sup> | [[molecules:ism:C3H-plus|C]]<sub>3</sub>H<sup>+</sup> | [[molecules:ism:MgC3N|MgC]]<sub>3</sub>N | [[molecules:ism:c_no#oxopentatetraenylidene, c<sub>5</sub>o|C]]<sub>5</sub>O | [[molecules:ism:CH3CHS|CH]]<sub>3</sub>CHS (2025) | [[molecules:ism:C2H3CHS|CH]]<sub>2</sub>CHCHS (2025) | | | | | | |
| |[[molecules:ism:HF|HF]] | [[molecules:ism:SiCN_SiNC|SiCN]] | [[molecules:ism:HMgNC|HMgNC]] | | | | | | | | | | | | [[molecules:ism:HF|HF]] | [[molecules:ism:SiCN_SiNC|SiCN]] | [[molecules:ism:HMgNC|HMgNC]] | [[molecules:ism:NH2OH|NH]]<sub>2</sub>OH | [[molecules:ism:C5H-plus|C]]<sub>5</sub>H<sup>+</sup> | | | | | | | | |
| |HD | [[molecules:ism:MNC_MCN#AlNC|AlNC]] | [[molecules:ism:HCCO|HCCO]] | | | | | | | | | | | | [[molecules:ism:SiH|SiH]]? | [[molecules:ism:MNC_MCN#AlNC|AlNC]] | [[molecules:ism:HCCO|HCCO]] | [[molecules:ism:HC3O+|HC]]<sub>3</sub>O<sup>+</sup> | [[molecules:ism:HCCNCH+|HCCNCH]]<sup>+</sup> | | | | | | | | |
| |[[molecules:ism:FeO|FeO]]? | [[molecules:ism:SiCN_SiNC|SiNC]] | [[molecules:ism:CNCN|CNCN]] | | | | | | | | | | | | [[molecules:ism:FeO|FeO]]? | [[molecules:ism:SiCN_SiNC|SiNC]] | [[molecules:ism:CNCN|CNCN]] | [[molecules:ism:HC3S+|HC]]<sub>3</sub>S<sup>+</sup> | [[molecules:ism:c-C3C2H|c-C]]<sub>3</sub>C<sub>2</sub>H | | | | | | | | |
| |[[molecules:ism:O2|O]]<sub>2</sub> | [[molecules:ism:HCP|HCP]] | [[molecules:ism:HONO|HONO]] (2019) | | | | | | | | | | [[molecules:ism:O2|O]]<sub>2</sub> | [[molecules:ism:HCP|HCP]] | [[molecules:ism:HONO|HONO]] | [[molecules:ism:H2C_nS|H]]<sub>2</sub>C<sub>2</sub>S | [[molecules:ism:HC_nS|HC]]<sub>4</sub>S | | | | | | |
| |[[molecules:ism:CF-plus|CF]]<sup>+</sup> | [[molecules:ism:CCP|CCP]] | [[molecules:ism:MgC2_4H|MgC]]<sub>2</sub>H (2019) | | | | | | | | | | | | [[molecules:ism:CF-plus|CF]]<sup>+</sup> | [[molecules:ism:CCP|CCP]] | [[molecules:ism:MgC2_4H|MgC]]<sub>2</sub>H | [[molecules:ism:c2_3s#information_on_c4s|C]]<sub>4</sub>S | [[molecules:ism:HMgC3N|HMgC]]<sub>3</sub>N | | | | | | | | |
| |[[molecules:ism:SiH|SiH]]? | [[molecules:ism:AlO|AlOH]] | | | | | | | | | | | | | [[molecules:ism:PO|PO]] | [[molecules:ism:AlO|AlOH]] | [[molecules:ism:HC_nS|HCCS]] | [[molecules:ism:HCOSH|HC(O)SH]] | [[molecules:ism:MgC2nH-plus|MgC]]<sub>4</sub>H<sup>+</sup> | | | | | | | | |
| |[[molecules:ism:PO|PO]] | [[molecules:ism:H2O-plus|H]]<sub>2</sub>O<sup>+</sup> | | | | | | | | | | | | | [[molecules:ism:AlO|AlO]] | [[molecules:ism:H2O-plus|H]]<sub>2</sub>O<sup>+</sup> | [[molecules:ism:HNCN|HNCN]] | [[molecules:ism:HCSCN|HC(S)CN]] | [[molecules:ism:H2C3H-plus|H]]<sub>2</sub>C<sub>3</sub>H<sup>+</sup> | | | | | | | | |
| |[[molecules:ism:AlO|AlO]] | [[molecules:ism:H2Cl-plus|H]]<sub>2</sub>Cl<sup>+</sup> | | | | | | | | | | | | | [[molecules:ism:OH-plus|OH]]<sup>+</sup> | [[molecules:ism:H2Cl-plus|H]]<sub>2</sub>Cl<sup>+</sup> | [[molecules:ism:H2NC|H]]<sub>2</sub>NC | [[molecules:ism:hc_no#propynonyl, hccco|HCCCO]] | [[molecules:ism:H2C3N|H]]<sub>2</sub>C<sub>3</sub>N | | | | | | | | |
| |[[molecules:ism:OH-plus|OH]]<sup>+</sup> | [[molecules:ism:MNC_MCN#kcn|KCN]] | | | | | | | | | | | | | [[molecules:ism:CN-minus|CN]]<sup>-</sup> | [[molecules:ism:MNC_MCN#kcn|KCN]] | [[molecules:ism:HCCS-plus|HCCS]]<sup>+</sup> | [[molecules:ism:NaCCCN|NaCCCN]] | [[molecules:ism:H2CO3|(HO)]]<sub>2</sub>CO | | | | | | | | |
| |[[molecules:ism:CN-minus|CN]]<sup>-</sup> | [[molecules:ism:MNC_MCN#FeCN|FeCN]] | | | | | | | | | | | | | [[molecules:ism:SH-plus|SH]]<sup>+</sup> | [[molecules:ism:MNC_MCN#FeCN|FeCN]] | [[molecules:ism:CH3-plus|CH]]<sub>3</sub><sup>+</sup> | [[molecules:ism:MgC2nH-plus|MgC]]<sub>3</sub>N<sup>+</sup> | [[molecules:ism:Cyanomethanimin|H]]<sub>2</sub>CNCN (2024) | | | | | | | | |
| |[[molecules:ism:SH-plus|SH]]<sup>+</sup> | [[molecules:ism:HO2|HO]]<sub>2</sub> | | | | | | | | | | | | [[molecules:ism:SH|SH]] | [[molecules:ism:HO2|HO]]<sub>2</sub> | [[molecules:ism:HCNS|HCNS]] (2024) | [[molecules:ism:HCxN-plus|HC]]<sub>3</sub>N<sup>+</sup> (2024) | [[molecules:ism:NCHCCS|NCHCCS]] (2024) | | | | | | | |
| |[[molecules:ism:SH|SH]] | [[molecules:ism:Ti-Oxide#titanium_dioxide|TiO]]<sub>2</sub> | | | | | | | | | | | | | [[molecules:ism:HCl-plus|HCl]]<sup>+</sup> | [[molecules:ism:Ti-Oxide#titanium_dioxide|TiO]]<sub>2</sub> | [[molecules:ism:HOCS-plus|HOCS]]<sup>+</sup> (2024) | [[molecules:ism:HC_nS|HC]]<sub>3</sub>S (2024) | [[molecules:ism:Cyclopropenonthion|c-H]]<sub>2</sub>C<sub>3</sub>S (2025) | | | | | | | | |
| |[[molecules:ism:HCl-plus|HCl]]<sup>+</sup> | [[molecules:ism:C2N|C]]<sub>2</sub>N | | | | | | | | | | | | | [[molecules:ism:Ti-Oxide#titanium_monoxide|TiO]] | [[molecules:ism:C2N|C]]<sub>2</sub>N | [[molecules:ism:HNSO|HNSO]] (2024) | [[molecules:ism:NC_nS|NC]]<sub>3</sub>S (2024) | | | | | | | | | |
| |[[molecules:ism:Ti-Oxide#titanium_monoxide|TiO]] | [[molecules:ism:Si2C|Si]]<sub>2</sub>C | | | | | | | | | | | | | [[molecules:ism:ArH-plus|ArH]]<sup>+</sup> | [[molecules:ism:Si2C|Si]]<sub>2</sub>C | | | | | | | | | | | |
| |[[molecules:ism:ArH-plus|ArH]]<sup>+</sup> | [[molecules:ism:HS2|HS]]<sub>2</sub> | | | | | | | | | | | | | [[molecules:ism:N2|N]]<sub>2</sub> | [[molecules:ism:HS2|HS]]<sub>2</sub> | | | | | | | | | | | |
| |[[molecules:ism:N2|N]]<sub>2</sub> | [[molecules:ism:HCS_HSC|HCS]] | | | | | | | | | | | | | [[molecules:ism:NO-plus|NO]]<sup>+</sup> | [[molecules:ism:HCS_HSC|HCS]] | | | | | | | | | | | |
| |[[molecules:ism:NO-plus|NO]]<sup>+</sup>? | [[molecules:ism:HCS_HSC|HSC]] | | | | | | | | | | | | | [[molecules:ism:NS-plus|NS]]<sup>+</sup> | [[molecules:ism:HCS_HSC|HSC]] | | | | | | | | | | | |
| |[[molecules:ism:NS-plus|NS]]<sup>+</sup> | [[molecules:ism:NCO|NCO]] | | | | | | | | | | | | | [[molecules:ism:HeH-plus|HeH]]<sup>+</sup> | [[molecules:ism:NCO|NCO]] | | | | | | | | | | | |
| |[[molecules:ism:HeH-plus|HeH]]<sup>+</sup> (2019) | [[molecules:ism:CaNC|CaNC]] (2019) | | | | | | | | | | | | | [[molecules:ism:PO-plus|PO]]<sup>+</sup> | [[molecules:ism:CaNC|CaNC]] | | | | | | | | | | | |
| | | [[molecules:ism:SiP|SiP]] ? | [[molecules:ism:NCS|NCS]] | | | | | | | | | | | |
| | | [[molecules:ism:FeC|FeC]] | [[molecules:ism:MgC2|MgC]]<sub>2</sub> | | | | | | | | | | | |
| | | [[molecules:ism:ME|MgS]] (2024) | [[molecules:ism:HSO|HSO]] | | | | | | | | | | | |
| | | [[molecules:ism:ME|NaS]] (2024) | [[molecules:ism:CaC2|CaC]]<sub>2</sub> (2024) | | | | | | | | | | | |
| |
| The year most relevant to the detection (including isotopic species or vibrationally excited states) is given for recent results --- the past two to three years. | The year of the detection is given for recent results --- the past two to three years. |
| |
| Currently, three molecules have been reported as detected whose detections have been questioned fairly convincingly in subsequent papers. These molecules are [[molecules:ism:glycin|aminoacetic acid]], H<sub>2</sub>NCH<sub>2</sub>COOH, aka glycine, [[molecules:ism:C3H6O3|1,3-dihydroxypropanone]], aka dihydroxyacetone, and cyanodecapentayne, [[molecules:ism:HC11N|HC]]<sub>11</sub>N. We consider these molecules as not yet detected. | Currently, three molecules have been reported as detected whose detections have been questioned fairly convincingly in subsequent papers. These molecules are [[molecules:ism:glycin|aminoacetic acid]], H<sub>2</sub>NCH<sub>2</sub>COOH, aka glycine, and [[molecules:ism:C3H6O3|1,3-dihydroxypropanone]], aka dihydroxyacetone. We consider these molecules as not yet detected. |
| |
| The detection of SH by rovibrational spectroscopy of the S-type star R Andromedae has been omitted from this table as the molecule is present in the stellar atmosphere. It is hoped that a table of molecules in stellar atmospheres will be available in the not too distant future. Note, however, that the SH radical has recently been detected unambiguously in the ISM. | The detection of SH by rovibrational spectroscopy of the S-type star R Andromedae has been omitted from this table as the molecule is present in the stellar atmosphere. It is hoped that a table of molecules in stellar atmospheres will be available in the not too distant future. Note, however, that the SH radical has recently been detected unambiguously in the ISM. |
| |
| ===== Extragalactic Molecules (as of 11/2017) ===== | ===== Extragalactic Molecules (as of 03/2024) ===== |
| |
| ^2 atoms ^3 atoms ^4 atoms ^5 atoms ^6 atoms ^7 atoms ^8 atoms ^>8 atoms^ | ^2 atoms ^3 atoms ^4 atoms ^5 atoms ^6 atoms ^7 atoms ^8 atoms ^>8 atoms^ |
| |[[molecules:extragalactic:OH_extragalactic|OH]] | [[molecules:extragalactic:H2O_extragalactic|H]]<sub>2</sub>O | [[molecules:extragalactic:H2CO_extragalactic|H]]<sub>2</sub>CO | [[molecules:extragalactic:C3H2_extragalactic|c-C]]<sub>3</sub>H<sub>2</sub> | [[molecules:extragalactic:CH3OH_extragalactic|CH]]<sub>3</sub>OH | [[molecules:extragalactic:CH3CCH_extragalactic|CH]]<sub>3</sub>CCH | [[molecules:extragalactic:HC2nH_extragalactic#di-_and_triacetylene|HC]]<sub>6</sub>H | [[molecules:extragalactic:Benzol_extragalactic|c-C]]<sub>6</sub>H<sub>6</sub>*| | |[[molecules:extragalactic:OH_extragalactic|OH]] | [[molecules:extragalactic:H2O_extragalactic|H]]<sub>2</sub>O | [[molecules:extragalactic:H2CO_extragalactic|H]]<sub>2</sub>CO | [[molecules:extragalactic:C3H2_extragalactic|c-C]]<sub>3</sub>H<sub>2</sub> | [[molecules:extragalactic:CH3OH_extragalactic|CH]]<sub>3</sub>OH | [[molecules:extragalactic:CH3CCH_extragalactic|CH]]<sub>3</sub>CCH | [[molecules:extragalactic:HC2nH_extragalactic#di-_and_triacetylene|HC]]<sub>6</sub>H | [[molecules:extragalactic:Benzol_extragalactic|c-C]]<sub>6</sub>H<sub>6</sub>*| |
| |[[molecules:extragalactic:CO_extragalactic|CO]] | [[molecules:extragalactic:HCN_extragalactic|HCN]] | [[molecules:extragalactic:NH3_extragalactic|NH]]<sub>3</sub>| [[molecules:extragalactic:HC3N_extragalactic|HC]]<sub>3</sub>N | [[molecules:extragalactic:CH3CN_extragalactic|CH]]<sub>3</sub>CN | [[molecules:extragalactic:MeNH2_extragalactic|CH]]<sub>3</sub>NH<sub>2</sub> | | [[molecules:extragalactic:Fullerene_extragalactic#C60|C]]<sub>60</sub>*(?) | | |[[molecules:extragalactic:CO_extragalactic|CO]] | [[molecules:extragalactic:HCN_extragalactic|HCN]] | [[molecules:extragalactic:NH3_extragalactic|NH]]<sub>3</sub>| [[molecules:extragalactic:HC3N_extragalactic|HC]]<sub>3</sub>N | [[molecules:extragalactic:CH3CN_extragalactic|CH]]<sub>3</sub>CN | [[molecules:extragalactic:MeNH2_extragalactic|CH]]<sub>3</sub>NH<sub>2</sub> | [[molecules:extragalactic:Methylformiat|HC(O)OCH]]<sub>3</sub> | [[molecules:extragalactic:Fullerene_extragalactic#C60|C]]<sub>60</sub>*(?) | |
| |[[molecules:extragalactic:H2_extragalactic|H]]<sub>2</sub>* | [[molecules:extragalactic:HCO-plus_extragalactic|HCO]]<sup>+</sup> | [[molecules:extragalactic:HNCO_extragalactic|HNCO]] | [[molecules:extragalactic:CH2NH_extragalactic|CH]]<sub>2</sub>NH | [[molecules:extragalactic:HC2nH_extragalactic#di-_and_triacetylene|HC]]<sub>4</sub>H* | [[molecules:extragalactic:MeCHO_extragalactic|CH]]<sub>3</sub>CHO | | | | |[[molecules:extragalactic:H2_extragalactic|H]]<sub>2</sub>* | [[molecules:extragalactic:HCO-plus_extragalactic|HCO]]<sup>+</sup> | [[molecules:extragalactic:HNCO_extragalactic|HNCO]] | [[molecules:extragalactic:CH2NH_extragalactic|CH]]<sub>2</sub>NH | [[molecules:extragalactic:HC2nH_extragalactic#di-_and_triacetylene|HC]]<sub>4</sub>H* | [[molecules:extragalactic:MeCHO_extragalactic|CH]]<sub>3</sub>CHO | | [[molecules:extragalactic:DME|(CH]]<sub>3</sub>)<sub>2</sub>O | |
| |[[molecules:extragalactic:CH_extragalactic|CH]] | [[molecules:extragalactic:C2H_extragalactic|C]]<sub>2</sub>H | [[molecules:extragalactic:HC2nH_extragalactic#HC2H|C]]<sub>2</sub>H<sub>2</sub>* | [[molecules:extragalactic:NH2CN_extragalactic|NH]]<sub>2</sub>CN | [[molecules:extragalactic:Formamid_extragalactic|HC(O)NH]]<sub>2</sub> | | | | | |[[molecules:extragalactic:CH_extragalactic|CH]] | [[molecules:extragalactic:C2H_extragalactic|C]]<sub>2</sub>H | [[molecules:extragalactic:HC2nH_extragalactic#HC2H|C]]<sub>2</sub>H<sub>2</sub>* | [[molecules:extragalactic:NH2CN_extragalactic|NH]]<sub>2</sub>CN | [[molecules:extragalactic:Formamid_extragalactic|HC(O)NH]]<sub>2</sub> | [[molecules:extragalactic:C2H3CN_extragalactic|C]]<sub>2</sub>H<sub>3</sub>CN | | | |
| |[[molecules:extragalactic:CS_extragalactic|CS]] | [[molecules:extragalactic:HNC_extragalactic|HNC]] | [[molecules:extragalactic:H2CS_extragalactic|H]]<sub>2</sub>CS? | [[molecules:extragalactic:l-C3H2_extragalactic|l-C]]<sub>3</sub>H<sub>2</sub>| | | | | | |[[molecules:extragalactic:CS_extragalactic|CS]] | [[molecules:extragalactic:HNC_extragalactic|HNC]] | [[molecules:extragalactic:H2CS_extragalactic|H]]<sub>2</sub>CS? | [[molecules:extragalactic:l-C3H2_extragalactic|l-C]]<sub>3</sub>H<sub>2</sub>| [[molecules:extragalactic:CH3SH_extragalactic|CH]]<sub>3</sub>SH | | | | |
| |[[molecules:extragalactic:CH-plus_extragalactic|CH]]<sup>+</sup> | [[molecules:extragalactic:N2H-plus_extragalactic|N]]<sub>2</sub>H<sup>+</sup> | [[molecules:extragalactic:HOCO-plus_extragalactic|HOCO]]<sup>+</sup> | [[molecules:extragalactic:H2CCN_extragalactic|H]]<sub>2</sub>CCN | | | | | | |[[molecules:extragalactic:CH-plus_extragalactic|CH]]<sup>+</sup> | [[molecules:extragalactic:N2H-plus_extragalactic|N]]<sub>2</sub>H<sup>+</sup> | [[molecules:extragalactic:HOCO-plus_extragalactic|HOCO]]<sup>+</sup> | [[molecules:extragalactic:H2CCN_extragalactic|H]]<sub>2</sub>CCN | | | | | |
| |[[molecules:extragalactic:CN_extragalactic|CN]] | [[molecules:extragalactic:OCS_extragalactic|OCS]] | [[molecules:extragalactic:c-C3H_extragalactic|c-C]]<sub>3</sub>H | [[molecules:extragalactic:H2CCO_extragalactic|H]]<sub>2</sub>CCO | | | | | | |[[molecules:extragalactic:CN_extragalactic|CN]] | [[molecules:extragalactic:OCS_extragalactic|OCS]] | [[molecules:extragalactic:c-C3H_extragalactic|c-C]]<sub>3</sub>H | [[molecules:extragalactic:H2CCO_extragalactic|H]]<sub>2</sub>CCO | | | | | |
| |[[molecules:extragalactic:SO_extragalactic|SO]] | [[molecules:extragalactic:HCO_extragalactic|HCO]] | [[molecules:extragalactic:H3O-plus_extragalactic|H]]<sub>3</sub>O<sup>+</sup> | [[molecules:extragalactic:C4H_extragalactic|C]]<sub>4</sub>H | | | | | | |[[molecules:extragalactic:SO_extragalactic|SO]] | [[molecules:extragalactic:HCO_extragalactic|HCO]] | [[molecules:extragalactic:H3O-plus_extragalactic|H]]<sub>3</sub>O<sup>+</sup> | [[molecules:extragalactic:C4H_extragalactic|C]]<sub>4</sub>H | | | | | |
| |[[molecules:extragalactic:SiO_extragalactic|SiO]] | [[molecules:extragalactic:H2S_extragalactic|H]]<sub>2</sub>S | [[molecules:extragalactic:l-C3H_extragalactic|l-C]]<sub>3</sub>H | | | | | | | |[[molecules:extragalactic:SiO_extragalactic|SiO]] | [[molecules:extragalactic:H2S_extragalactic|H]]<sub>2</sub>S | [[molecules:extragalactic:l-C3H_extragalactic|l-C]]<sub>3</sub>H | [[molecules:extragalactic:HCOOH_extragalactic|HCOOH]] | | | | | |
| |[[molecules:extragalactic:CO-plus_extragalactic|CO]]<sup>+</sup> | [[molecules:extragalactic:SO2_extragalactic|SO]]<sub>2</sub> | | | | | | | | |[[molecules:extragalactic:CO-plus_extragalactic|CO]]<sup>+</sup> | [[molecules:extragalactic:SO2_extragalactic|SO]]<sub>2</sub> | [[molecules:extragalactic:C3N_extragalactic|C]]<sub>3</sub>N | [[molecules:extragalactic:C2H3-plus_extragalactic|C]]<sub>2</sub>H<sub>3</sub><sup>+</sup> (2024) | | | | | |
| |[[molecules:extragalactic:NO_extragalactic|NO]] | [[molecules:extragalactic:HOC-plus_extragalactic|HOC]]<sup>+</sup> | | | | | | | | |[[molecules:extragalactic:NO_extragalactic|NO]] | [[molecules:extragalactic:HOC-plus_extragalactic|HOC]]<sup>+</sup> | [[molecules:extragalactic:l-C3H-plus_extragalactic|l-C]]<sub>3</sub>H<sup>+</sup> | | | | | | |
| |[[molecules:extragalactic:NS_extragalactic|NS]] | [[molecules:extragalactic:C2S_extragalactic|C]]<sub>2</sub>S | | | | | | | | |[[molecules:extragalactic:NS_extragalactic|NS]] | [[molecules:extragalactic:C2S_extragalactic|C]]<sub>2</sub>S | [[molecules:extragalactic:H2CN_extragalactic|H]]<sub>2</sub>CN | | | | | | |
| |[[molecules:extragalactic:NH_extragalactic|NH]] | [[molecules:extragalactic:H2O-plus_extragalactic|H]]<sub>2</sub>O<sup>+</sup> | | | | | | | | |[[molecules:extragalactic:NH_extragalactic|NH]] | [[molecules:extragalactic:H2O-plus_extragalactic|H]]<sub>2</sub>O<sup>+</sup> | [[molecules:extragalactic:H2NC_extragalactic|H]]<sub>2</sub>NC | | | | | | |
| |[[molecules:extragalactic:OH-plus_extragalactic|OH]]<sup>+</sup> | [[molecules:extragalactic:HCS-plus_extragalactic|HCS]]<sup>+</sup> | | | | | | | | |[[molecules:extragalactic:OH-plus_extragalactic|OH]]<sup>+</sup> | [[molecules:extragalactic:HCS-plus_extragalactic|HCS]]<sup>+</sup> | | | | | | | |
| |[[molecules:extragalactic:HF_extragalactic|HF]] | [[molecules:extragalactic:H2Cl-plus_extragalactic|H]]<sub>2</sub>Cl<sup>+</sup> | | | | | | | | |[[molecules:extragalactic:HF_extragalactic|HF]] | [[molecules:extragalactic:H2Cl-plus_extragalactic|H]]<sub>2</sub>Cl<sup>+</sup> | | | | | | | |
| |[[molecules:extragalactic:CF-plus_extragalactic|CF]]<sup>+</sup> | | | | | | | | | |[[molecules:extragalactic:CF-plus_extragalactic|CF]]<sup>+</sup> | | | | | | | | |
| |[[molecules:extragalactic:SH-plus_extragalactic|SH]]<sup>+</sup> | | | | | | | | | |[[molecules:extragalactic:SH-plus_extragalactic|SH]]<sup>+</sup> | | | | | | | | |
| |[[molecules:extragalactic:O2_extragalactic|O]]<sub>2</sub> (?) (2020) | | | | | | | | | |[[molecules:extragalactic:O2_extragalactic|O]]<sub>2</sub> (?) | | | | | | | | |
| | |[[molecules:extragalactic:PN_extragalactic|PN]] | | | | | | | | |