===== The Detection of Methyl Acetate, CH3OC(O)CH3, in Orion KL =====

B. Tercero, I. Kleiner, J. Cernicharo, H. V. L. Nguyen, A. López, and G. M. Muñoz Caro\\
recently reported on the\\
**[[https://doi.org/10.1088/2041-8205/770/1/L13|Discovery of Methyl Acetate and Gauche Ethyl Formate in Orion]]**\\
//Astrophys. J.// **770**, (2013) Art. No. L13.\\
The detection was made in the course of a molecular line survey carried out with the IRAM 30 m radio telescope. At a rotational temperature of about 150 K, very many transitions of methyl acetate have non-negligible intensities. However, many of them are blended severely with emissions of other molecules. Nevertheless, a considerable number of transitions are not or only slightly blended, such that its detection can be considered secure in spite of many still unassigned lines. Its column density is about a factor of five higher than that derived for ethyl formate in this source.

Methyl acetate is the third ester and the first acetate to be detected in the ISM after [[molecules:ism:methylformiat|methyl formate]] and [[molecules:ism:ethylformiat|ethyl formate]]. It is an isomer of ethyl formate.


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Contributor(s): H. S. P. Müller; 07, 2013


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