The molecule is a brassinosteroid that is campesterol bearing an additional 22S-hydroxy substituent. It is a brassinosteroid, a 3beta-sterol, a 22-hydroxy steroid and a 3beta-hydroxy-Delta(5)-steroid. It derives from a hydride of a campestane.
(3S,8S,9S,10R,13S,14S,17R)-17-[(2S,3S,5R)-3-hydroxy-5,6-dimethylheptan-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol