The molecule is a cholestanoid that is cholest-6-ene substituted by a beta-hydroxy group at position 3 and a peroxy group between positions 5 and 8 (the 5alpha,8alpha stereoisomer). Isolated from the sea urchin Diadema setosum, it exhibits cytotoxicity against variuos cancer cell lines. It has a role as a metabolite and an antineoplastic agent. It is an organic peroxide, a cholestanoid and a 3beta-sterol.
(1S,2R,5R,6R,9R,10R,13S,15S)-6,10-dimethyl-5-[(2R)-6-methylheptan-2-yl]-16,17-dioxapentacyclo[13.2.2.01,9.02,6.010,15]nonadec-18-en-13-ol