22848-79-9 AIDS-031223 AIDS031223 Cyclopenta[1,2]phenanthro[8a,9-b]oxiren-1(4H)-one, 4-(acetyloxy)-9-[(1S)-1-[(2S)-5-[(acetyloxy)methyl]-3,6-dihydro-4-methyl-6-oxo-2H-pyran-2-yl]ethyl]-5a,6,6a,6b,7,8,9,9a,10,11,11a,11b-dodecahydro-9a,11b-dimethyl-, (4S,4aS,5aR,6aS,6bS,9R,9aS,11aS,11bR... NSC328416 Withaferin-A diacetate