4-[(1-Oxopropyl)phenylamino]-1-[2-(2-thienyl)ethyl]-4-piperidinecarboxylic Acid Methyl Ester
CAS No. 60771-38-2
4-[(1-Oxopropyl)phenylamino]-1-[2-(2-thienyl)ethyl]-4-piperidinecarboxylic Acid Methyl Ester;R 31826;Thiofentanil