Apart from hydrocarbon and
ester fractions the major components of the wax of the pemphigid Eriosoma
lanigerum were found to be homologous diketo esters. On hydrolysis, keto
alcohol and keto acid fractions were obtained. Their major constituents,
1-hydroxytetratriacontan-15-one and 13-oxodotriacontanoic acid have been
synthesized. The wax of another pemphigid, Pemphigus spirothecae, was of
similar composition, differing from that of the aphid Brevicoryne brassicae.
除了碳氢化合物和
除了碳氢化合物和酯类馏分外,还发现鞘氨醇 Eriosoma
lanigerum 蜡的主要成分是同源的二酮酯。水解后,酮
醇和酮酸馏分。它们的主要成分是
1-hydroxytetratriacontan-15-one 和 13-oxodotriacontanoic acid。
合成。另一种蚜虫(Pemphigus spirothecae)的蜡具有类似的成分,但与蚜虫的蜡不同。
与蚜虫 Brevicoryne brassicae 的蜡质不同。