Synonyms: 3-Thiazolidineacetic acid, 5-(2-(3-ethyl-2(3H)-benzoxazolylidene)ethylidene)-4-oxo-2-thioxo-, compd. with piperidine (1:1);3-Carboxymethyl-5-((3-ethyl-2-benzoxazolylidene)ethylidene)rhodanine, piperidine salt;3-Thiazolidineacetic acid, 5-((3-ethyl-2(3H)-benzoxazolylidene)ethylidene)-4-oxo-2-thioxo-, compd. with piperidine (1:1);5-((3-Ethylbenzoxazol-2(3H)-ylidene)ethylidene)-4-oxo-2-thioxothiazolidine-3-acetic acid, compound with piperidine (1:1);{(4E)-4-[(2E)-2-(3-ethyl-1,3-benzoxazol-2(3H)-ylidene)ethylidene]-5-oxo-2-thioxo-1,3-thiazolidin-3-yl}acetic acid - piperidine (1:1)