Prednisolone Impurity A

Chemical Name: (2R,3R,4aS,4bS,10aR,10bS,11S,12aS)-2,3,11-trihydroxy-2-(hydroxymethyl)-10a,12a-dimethyl-3,4,4a,5,6,10a,10b,11,12,12a-decahydrochrysene-1,8(2H,4bH)-dione

Smile: O[C@H]1C[C@@]2(C)[C@](C[C@@H](O)[C@@](CO)(O)C2=O)([H])[C@]3([H])CCC4=CC(C=C[C@]4(C)[C@]31[H])=O