pethidine intermediate a pethidine intermediate a pethidine intermediate a is a 4-phenylpiperidine derivative that is a precursor to the opioid analgesic drug pethidine (meperidine). it is not known to have any analgesic activity in its own right, however other derivatives of pethidine with a 4-cyano group in place of the carboxylate ethyl ester have been found to be active, so pethidine intermediate a might also show opioid effects. it is scheduled by un single convention on narcotic drugs. it is a schedule ii narcotic controlled substance in the united states and has an acscn of 9232. the 2014 annual manufacturing quota was 6 grammes (as an end product, presumably for research use). pethidine intermediate aclinical dataroutes ofadministrationn/aatc codenonelegal statuslegal status de: anlage ii (authorized trade only, not prescriptible) us: schedule ii un: narcotic schedule i identifiers iupac name 1-methyl-4-phenylpiperidine-4-carbonitrile cas number3627-62-1pubchem cid62513chemspider56289uniiel4l2474tycomptox dashboard (epa)dtxsid50189814 echa infocard100.020.771 chemical and physical dataformulac13h16n2molar mass200.285 g·mol−13d model (jsmol)interactive image smiles cn1ccc(cc1)(c#n)c2ccccc2 inchi inchi=1s/c13h16n2/c1-15-9-7-13(11-14,8-10-15)12-5-3-2-4-6-12/h2-6h,7-10h2,1h3key:zlfqtzyfxyogls-uhfffaoysa-n (verify)