Seven sugars namely raffinose, lactose, maltose, sucrose, galactose, glucose and fructose were identified.[2] Fumaric acid, caffeic acid esters, β-sitosterol and β-sitosterol glucoside were isolated from the flowers.[4] Apigenin, acacetin and a new flavone glycoside, characterised as the methyl ester of acacetin-7-0-glucuronide are isolated from the flowers.[5] Saponin is one of the major compounds of the leaf.[6] 24 beta-ethylsterols, clerosterol and 22-dehydroclerosterol, 24-methyl-sterols (24-methylcholestanol, 24-methylcholesterol, 24-methyl-22-dehydrocholesterol, and 24-methyllathostero) and 24 beta-ethyl-22-dehydrocholestanol are found in the seeds.[7] Scutellarin and hispidulin-7-O-glucuronide are present in the leaf.[8] Poriferasterol and stigmasterol are the components of the aerial parts.[9]