Chemical Name: N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5α-androst-1-ene-17β-carboxamide ;
Synonym: Solifenacin (R,S) Methanone Impurity
Smile: C[C@@]12[C@@H](C(NC3=CC(C(F)(F)F)=CC=C3C(F)(F)F)=O)CC[C@@]1([H])[C@]4([H])CC[C@@]5([H])NC(C=C[C@]5(C)[C@@]4([H])CC2)=O