molecules:ism:c4h8o4 [CDMS classic documentation]

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===== On C4H8O4 Isomers in the ISM =====

I. Jiménez-Serra, J. G. de la Concepción, H. M. Cuppen, M. Rey-Montejo, M. Sanz-Novo, V. M. Rivilla, J. Martín-Pintado, A. Megías, C. Briones, D. San Andrés, L. Colzi, S. Zeng, S. Martín, J. Salaris, A. Martínez-Henares, Á. López-Gallifa, M. A. Requena-Torres, B. Tercero, P. de Vicente, A. Insausti, E. R. Alonso, E. J. Cocinero\\
announced the\\
**[[https://doi.org/10.1038/s41550-026-02905-7|Detection of a Four-carbon Sugar in Interstellar Space]]**\\
//Nat. Astron.// **10**, 1353–1363 (2026).\\
The molecule was detected in the course of a molecular line survey of the Galactic Center molecular cloud G+0.693–0.027 employing the Yebes 40 m and IRAM 30 m radio telecopes. Many lines were covered, bu most are heavily blended or have poor signal-to-noise ratio. However, a sufficient number is not or not too severely blended. The rotational temerature //T//<sub>rot</sub> was determind as ~11 K. The column density is about the same as the one of glycolaldehyde and about half that of ethylene glycol.\\
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Contributor(s): H. S. P. Müller; 09, 2026

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