The molecule is a withanolide that is 2,3-dihydrowithaferin A substituted by a sulfoxy group at position 3. Isolated from Physalis longifolia, it exhibits antineoplastic activity. It has a role as a metabolite, an antineoplastic agent and a plant metabolite. It is a steroid sulfate, a delta-lactone, a 27-hydroxy steroid, a 4-hydroxy steroid, an ergostanoid, a primary alcohol, a withanolide and an epoxy steroid. It derives from a withaferin A.
[(1S,2R,5S,6S,7R,9R,11S,12S,15R,16S)-6-hydroxy-15-[(1S)-1-[(2R)-5-(hydroxymethyl)-4-methyl-6-oxo-2,3-dihydropyran-2-yl]ethyl]-2,16-dimethyl-3-oxo-8-oxapentacyclo[9.7.0.02,7.07,9.012,16]octadecan-5-yl] hydrogen sulfate