Chemical composition of the essential oil of Amorpha canescens Pursh.

The essential oils from inflorescences, leaves and fruits of Amorpha canescens Pursh were analysed by GC, GC-MS and (1)H-NMR spectroscopy. More than 100 compounds were identified. Germacrene D (43.6%) and germacrene D-4-ol (8.3%) were the main constituents in the fruit oil. The oil from inflorescences contained mainly ß-elemol (29.4%) and germacrene D (14.6%), whereas the leaf oil contained germacrene D (30.3%), germacrene D-4-ol (10.9%) and ß-elemol (10.1%).