101343-69-5 Acetamide, N-(2-fluorophenyl)-2-methoxy-N-(1-(2-phenylethyl)-4-piperidinyl)- N-(2-Fluorophenyl)-2-methoxy-N-(1-(2-phenylethyl)-4-piperidinyl)acetamide Ocfentanil Ocfentanilo [INN-Spanish] Ocfentanilum [INN-Latin]