The molecule is a 3beta-hydroxy steroid that is 4-methylergosta-7,24(28)-dien-3-ol substituted by additional hydroxy groups at positions 2 and 21 (the 2alpha,3beta,4alpha,5alpha stereoisomer). It has been isolated from the roots of Breynia fruticosa and exhibits cytotoxic activity against human cancer cell lines. It has a role as an antineoplastic agent and a plant metabolite. It is a 3beta-hydroxy steroid, a 21-hydroxy steroid and a triol.
(2R,3R,4S,5S,9R,10S,13R,14R,17R)-17-[(2R)-1-hydroxy-6-methyl-5-methylideneheptan-2-yl]-4,10,13-trimethyl-2,3,4,5,6,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-2,3-diol