2-(3-Ethyl-4-oxo-2-thiazolidinylidene)acetic acid ethyl ester 36958-87-9 Acetic acid, 2-(3-ethyl-4-oxo-2-thiazolidinylidene)-, ethyl ester EINECS 253-289-2 Ethyl (3-ethyl-4-oxothiazolidin-2-ylidene)acetate delta(sup 2,alpha)-Thiazolidineacetic acid, 3-ethyl-4-oxo-, ethyl ester