中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 9-oxo-4-decynoic acid | 78908-04-0 | C10H14O3 | 182.219 |
The metasternal gland secretion of Phoracantha synonyma contains a diversity of volatile components, one of which, 2-hydroxy-6-methylbenzaldehyde (1), is of widespread occurrence in the genus. Threemajor components and several minor components are macrocyclic lactones, of which the following have been positively identified: decan-9-olide (2), (2)-dec-4-en-9-olide (3) and 11-hydroxytetradec-5-en-13-olide (4). The methyl and ethyl esters of 2-methylbutyric and related acids are also present and are responsible for the characteristic odour of the fresh secretion.