1-Methyl-3-ethyl-4-phenyl-4-propionoxypiperidine hydrochloride 3-beta-Aethyl-1-methyl-4-phenyl-4-alpha-piperidylpropionat hydrochlorid [German] 3-beta-Aethyl-1-methyl-4-phenyl-4-alpha-propionyloxypiperidin hydrochlorid [German] 4-Piperidinol, 3-ethyl-1-methyl-4-phenyl-, propionate, hydrochloride 63039-90-7 Meprodine [German] NU-1932 Propionic acid, 3-ethyl-1-methyl-4-phenyl-4-piperidyl ester, hydrochloride