Chemical Name: tert-butyl 2-((4R,6R)-6-(2-(2-isopropyl-4,5-diphenyl-3-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
Synonym: Betamethasone EP Impurity B
Smile: O=C(C(C(C1=CC=CC=C1)=C(C2=CC=CC=C2)N3CC[C@@H](OC(C)(C)O4)C[C@@H]4CC(OC(C)(C)C)=O)=C3C(C)C)NC5=CC=CC=C5