Withanolide B

56973-41-2

(4aR,4bS,6aR,7R,9aS,9bS,9cS,10aS,10bR)-7-((S)-1-((R)-4,5-Dimethyl-6-oxo-3,6-dihydro-2H-pyran-2-yl)ethyl)-10b-hydroxy-4a,6a-dimethyl-1,4a,4b,5,6,6a,7,8,9,9a,9b,9c,10a,10b-tetradecahydro-4H-cyclopenta[1,2]phenanthro[9,10-b]oxiren-4-one; Lycium substance B;