23236-18-2 3-Thiazolidineacetic acid, 5-((3-ethyl-2(3H)-benzoxazolylidene)ethylidene)-4-oxo-2-thioxo- 5-((3-Ethylbenzoxazol-2(3H)-ylidene)ethylidene)-4-oxo-2-thioxothiazolidin-3-acetic acid EINECS 245-510-6 NSC 104961