Phytochemical investigation of the methanolic extract of the roots of Albizzia lebbeck Benth. (Fabaceae) led to the isolation of a new keto steroid characterized as stigmast-4, 20 (21), 23-trien-3-one (lebbeksterone) and an alcohol tricontan-10α-ol (Isotriacontanol), along with tricosanyloctadec-9-en-1-oate and pentacosanyloctadec-9-en-1-oate. The structures of all these phytoconstituents have been elucidated on the basis spectral data analysis and chemical reactions.
