105384-16-5 Carbamic acid, (3-(hexyloxy)phenyl)-, 1-butyl-4-piperidinyl ester, monohydrochloride (9CI) Carbanilic acid, m-heptyloxy-, 1-butyl-4-piperidyl ester, hydrochloride PAK 4437 m-Heptyloxycarbanilic acid 1-butyl-4-piperidyl ester hydrochloride