alarm and/or aggregation signals biol.

[Lactose]

In separate studies, (E)-hex-2-enal and (E)-oct-2-enal have been reported function as alarm and/or aggregation signals. The findings could suggest that the chemical binding from the part of molecules from carbons 5 and upward may not be as important as the unsaturated aldehyde moiety (carbons 1-4), in producing the aggregation and/or alarm signal

спасибо!

[rpsob]

(E)-осt-2-enal вообще в И-нете не существует.
Есть лишь (E)-but-2-enal - кротоновый альдегид,- промежуточный продукт в органо-синтезах
(E)-hex-2-enal - гормональный рецептор (имеет много синонимов).