Chemical Name: tert-butyl 4-(2-(4-(2-carbamoylbenzofuran-5-yl)piperazine-1-carbonyl)benzofuran-5-yl)piperazine-1-carboxylate;
Synonym: Fentanyl USP Related Compound E
Smile: O=C(OC(C)(C)C)N(CC1)CCN1C2=CC=C3C(C=C(C(N4CCN(C5=CC(C=C(C(N)=O)O6)=C6C=C5)CC4)=O)O3)=C2