The molecule is a withanolide saponin that consists of 22,26-epoxyergosta-5,24-dien-28-ol substituted by additional hydroxy groups at positions 1, 3 and 19, an oxo group at position 26 and a beta-D-glucopyranosyl residue at position 28 via a glycosidic linkage. It has been isolated from the aerial parts of Physalis longifolia. It has a role as a plant metabolite. It is a delta-lactone, a 1-hydroxy steroid, a 19-hydroxy steroid, a beta-D-glucoside, an ergostanoid, a monosaccharide derivative, a withanolide saponin and a 3beta-hydroxy-Delta(5)-steroid.
(2R)-2-[(1S)-1-[(1S,3R,8S,9S,10R,13S,14S,17R)-1,3-dihydroxy-10-(hydroxymethyl)-13-methyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethyl]-5-methyl-4-[[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-2,3-dihydropyran-6-one