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.
胸腺
腺分泌物中含有多种挥发性成分。
含有多种挥发性成分,其中一种是 2-hydroxy-6-methylbenzaldehyde (1)、
2-hydroxy-6-methylbenzaldehyde (1),在该属中广泛存在。
三种主要成分和
三种主要成分和几种次要成分是大环内酯,其中
癸-9-内酯(2)、(2)-癸-4-烯-9-内酯(3)和 11-羟基十四烷-5-内酯(4)。
11-hydroxytetradec-5-en-13-olide (4).2-甲基丁酸的甲酯和乙酯
2-甲基丁酸和相关酸的甲酯和乙酯,它们是新鲜分泌物特有气味的来源。
新鲜分泌物的特有气味。