(+-)-Cyclopentaneacetic acid, 3-oxo-trans-2-(cis-2-pentenyl), methyl ester 20073-13-6 Cyclopentaneacetic acid, 3-oxo-2-(2Z)-2-pentenyl-, methyl ester, (1R,2R)-rel- EINECS 243-497-1 Methyl (1alpha,2beta(Z))-(1)-3-oxo-2-(pent-2-enyl)cyclopentaneacetate Methyl dl-jasmonate