1-Propyl-4-piperidyl m-butoxycarbanilate hydrochloride 105405-72-9 CARBANILIC ACID, m-BUTOXY-, 1-PROPYL-4-PIPERIDYL ESTER, HYDROCHLORIDE Carbamic acid, (3-butoxyphenyl)-, 1-propyl-4-piperidinyl ester, monohydrochloride PAK 4334 m-Butoxycarbanilic acid 1-propyl-4-piperidyl ester hydrochloride