1-Methyl-2-(m-dimethylcarbamoxyphenyl)piperidine hydrochloride Carbamic acid, dimethyl-, m-(1-methyl-2-piperidyl)phenyl ester, hydrochloride Dimethylcarbamic acid m-(1-methyl-2-piperidyl)phenyl ester hydrochloride FA2600000 NU-353