1-Methyl-4-piperidyl phenyl(1-heptynyl)glycolate 2-Hydroxy-2-phenyl-3-nonynoic acid 1-methyl-4-piperidyl ester 3-NONYNOIC ACID, 2-HYDROXY-2-PHENYL-, 1-METHYL-4-PIPERIDYL ESTER 92956-54-2 NSC 173780