The molecule is a brassinosteroid that is castasterone carrying an alpha-D-glucosyl residue at position O-23. It has a role as a plant metabolite. It is a 2alpha-hydroxy steroid, a 22-hydroxy steroid, a 3alpha-hydroxy steroid, a 6-oxo steroid, a brassinosteroid, a steroid saponin and an alpha-D-glucoside. It derives from a castasterone.
(2R,3S,5S,8S,9S,10R,13S,14S,17R)-2,3-dihydroxy-17-[(2S,3R,4R,5S)-3-hydroxy-5,6-dimethyl-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyheptan-2-yl]-10,13-dimethyl-1,2,3,4,5,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-6-one