1-Methyl-4-piperidyl phenyl(1-cis-butenyl)glycolate 101756-49-4 MANDELIC ACID, alpha-(1-BUTENYL)-, 1-METHYL-4-PIPERIDYL ESTER, (Z)- Z-alpha-(1-Butenyl)mandelic acid 1-methyl-4-piperidyl ester