===== The Detection of Ethyl Formate and n-Propyl Cyanide toward Sagittarius B2(N) =====

Two among the largest molecules, ethyl formate, C<sub>2</sub>H<sub>5</sub>OCHO, and //n//-propyl cyanide, //n//-C<sub>3</sub>H<sub>7</sub>CN, have been detected in the famous massive star-forming region Sagittarius B2(N) in the course of a molecular line survey in the 3mm frequency domain with additional observations at 2 and 1 mm carried out with the IRAM 30m radiotelescope:\\
A. Belloche, R. T. Garrod, H. S. P. Müller, K. M. Menten, C. Comito, and P. Schilke,\\
**[[http://dx.doi.org/10.1051/0004-6361/200811550|Increased Complexity in Interstellar Chemistry: Detection and Chemical Modeling of Ethyl Formate and //n//-Propyl Cyanide in Sagittarius B2(N)]]**\\
//Astron. Astrophys.// **499**, (2009) 215–232.\\


These are the second and third molecules after [[http://www.astro.uni-koeln.de/site/vorhersagen/molecules/ism/AAN.html|aminoacetonitrile]] to be detected newly within this molecular line survey.\\
Ethyl formate is the second formate to be detected in the ISM after [[http://www.astro.uni-koeln.de/site/vorhersagen/molecules/ism/Methylformiat.html|methyl formate]]. The parent species formic acid, [[http://www.astro.uni-koeln.de/site/vorhersagen/molecules/ism/Formic_Acid.html|HCOOH]], has also been detected. The isomeric methyl acetate, CH<sub>3</sub>OC(O)CH<sub>3</sub>, has not yet been detected – in part because of very limited laboratory data.\\
//n//-Propyl cyanide is the third member after methyl cyanide, CH<sub>3</sub>CN, and ethyl cyanide, [[http://www.astro.uni-koeln.de/site/vorhersagen/molecules/ism/EtCN.html|C<sub>2</sub>H<sub>5</sub>CN]].


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Contributor(s): H. S. P. Müller; 04, 2009


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