3-(1-Methyl-3-pyrroline)methyl cyclopentyl(1-propynyl)glycolate 3-Pentynoic acid, 2-cyclopentyl-2-hydroxy-, (1-methyl-3-pyrrolin-3-yl)methyl ester 93101-61-2 Cyclopentaneglycolic acid, alpha-(1-propynyl)-, (1-methyl-3-pyrrolin-3-yl)methyl ester