The molecule is a steroid saponin that consists of (25R)-5alpha-spirostan-3beta-ol substituted by an oxo group at position 12 and a beta-D-galactopyranosyl moiety at position 3 via a glycosidic linkage. It is a monosaccharide derivative, a steroid saponin and an oxaspiro compound. It derives from a hydride of a (25R)-5alpha-spirostan.
(1R,2S,4S,5'R,6R,7S,8R,9S,12S,13S,16S,18S)-5',7,9,13-tetramethyl-16-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-10-one