Acetylfentanyl can be a member in the phenylpiperdine class of synthetic opioids. Its structure features a piperidine ring sure at its nitrogen constituent RN to the phenyl ring by means of an ethyl chain. The opposite carbon of the piperidine ring is bonded to the nitrogen member of the acetamide http://felixezmdh.designi1.com/14032287/rumored-buzz-on-f-mn-18