1-Methyl-4-(m-dimethylcarbamoxyphenyl)piperidine hydrochloride Carbamic acid, dimethyl-, m-(1-methyl-4-piperidyl)phenyl ester, hydrochloride Dimethylcarbamic acid m-(1-methyl-4-piperidyl)phenyl ester hydrochloride FA2610000 NU-364