Chemical Name: N-(1,1-dimethylethyl)-3-oxo-4-azaandrosta-1,5-diene-17b-carboxamide (as per EP) ; N-(1,1-dimethylethyl)-3-oxo-4-azaandrosta-1,5-diene-17β-carboxamide
Synonym: Δ5-finasteride (EP) ; Finasteride 5,6-Dehydro Impurity
Smile: C[C@@]12[C@@H](C(NC(C)(C)C)=O)CC[C@@]1([H])[C@]3([H])CC=C4NC(C=C[C@]4(C)[C@@]3([H])CC2)=O