[Chemical constituents in whole herb of Bidens pilosa var. radiata].

To study the chemical constituents of Bidens pilosa var. radiata.The constituents were separated and purified with silica gel column, and identified by physicochemical properties and spectral methods.Ten compounds were separated and identified as friedelin (1), n-tridecane (2), friedelinol (3), beta-sitosterol (4), 21 a-hydroxyfriedelan-3-one (5), stigmasterol (6), lupeol (7), stigmasterol-3-O-beta-D-glucopyranoside (8), eleosanole acid (9),...