4-Piperidinecarboxylic acid, 4-(phenylamino)-1-(2-phenylethyl)-, methyl ester

Despropionyl carfentanil is an analytical reference standard categorized as an intermediate in the synthesis of carfentanil , sufentanil , and remifentanil .¹ This product is intended for research and forensic applications.

Carfentanil N-Despropionaldehyde is a metabolite of Carfentanil (C183480); and a propionyl analogs of 4-methoxycarbonyl fentanyl.

1. Walz, A.J., and Hsu, F.-L. Synthesis of 4-anilinopiperidine methyl esters, intermediates in the production of carfentanil, sufentanil, and remifentanil Tetrahedron Lett. 55(2),501-502(2014).