1-Methyl-4-phenylpiperidine-4-carboxylic acid isopropyl ester 4-Piperidinecarboxylic acid, 1-methyl-4-phenyl-, 1-methylethyl ester 561-76-2 DEA No. 9644 EINECS 209-222-4 Gevelina Ipropethidine Isonipecotic acid, 1-methyl-4-phenyl-, isopropyl ester Isopedine Isopropyl 1-methyl-4-phenylisonipecotate Isopropyl 1-methyl-4-phenylpiperidine-4-carboxylate PROPERIDINE Properidina [INN-Spanish] Properidine [BAN:DCF:INN] Properidinum [INN-Latin]