Synonyms: [5-[2-(3-Ethyl-3H-benzothiazol-2-ylidene)ethylidene]-4-oxo-2-thioxothiazolidin-3-yl]acetic acid;3-Thiazolidineaceticacid, 5-[(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-4-oxo-2-thioxo- (9CI); G 1875; M 8; NK 2045;3-Carboxymethyl-5-[2-(3-ethylbenzothiazoline)dimethine]rhodanine; M 8(dye); Merocyanine MC 2;3-Carboxymethyl-5-[(3-ethyl-2-benzothiazolinylidene)ethylidene]rhodanine;3-Carboxymethyl-5-[b-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]rhodanine;3-Thiazolidineacetic acid,5-[2-(3-ethyl-2-benzothiazolinylidene)ethylidene]-4-oxo-2-thioxo- (8CI);