(1-Methyl-4-piperidyl)methyl phenyl(1-propynyl)glycolate hydrochloride 92956-06-4 MANDELIC ACID, alpha-(1-PROPYNYL)-, (1-METHYL-4-PIPERIDYL)METHYL ESTER, HYDROCHL Mandelic acid, alpha-(1-propynyl)-, (1-methyl-4-piperidyl)methyl ester, hydrochloride alpha-(1-Propynyl)mandelic acid (1-methyl-4-piperidyl)methyl ester hydrochloride