英文别名1-Cyclopentanone-2-acetic acid ethylester; 2-(2-Oxocyclopentyl)acetic Acid Ethyl Ester; Ethyl 2-Oxocyclopentaneacetate; Ethyl 2-oxocyclopentylacetate; 2-Oxocyclopentaneacetic Acid Ethyl Ester; 2-(ETHOXYCARBONYLMETHYL)CYCLOPENTANONE; (2-OXO-CYCLOPENTYL)-ACETIC ACID ETHYL ESTER; Ethyl(2-oxo-cyclopentyl)acetate; Cyclopentaneacetic acid, 2-oxo-, ethyl ester; Ethyl (2-oxocyclopentyl)acetate 
