Abelmoschus moschatus (Malvaceae)
Ambrette seeds come from a tropical hibiscus. The seeds contain an oil with a fatty-musky, slightly ambery odour. It's most important odoriferous components are the macrocyclic musks 5(Z)-tetradecen-14-olide and
7(Z)-hexadecen-16-olide, also called ambrettolide . The oil was formerly highly appreciated in perfumery, but has now been largely replaced by synthetic musks. For example, the isomer 9-hexadecen-16-olide is made by the Swiss company Givaudan .
Musk odorants in plants are always macrocyclic lactones (see also angelica ). In animals, using musks as pheromones, they may be ketones as well as lactones, see musk deer , musk rat , and civet .