Synonyms: 2-(4-(1-Heptyl-3-phenyl-5-oxo-2-thioxoimidazolidin-4-ylidene)but-2-en-1-ylidene)-alpha-methylnaphtho(2,3-d)thiazole-3(2H)-propane-1-sulphonic acid, compound with (triethyl)amine (1:1);Naphtho(2,3-d)thiazole-3(2H)-propanesulfonic acid, 2-(4-(1-heptyl-3-phenyl-5-oxo-2-thioxo-4-imidazolidinylidene)-2-butenylidene)-alpha-methyl-, compd. with N,N-diethylethanamine (1:1);Naphtho(2,3-d)thiazole-3(2H)-propanesulfonic acid, 2-(4-(1-heptyl-5-oxo-3-phenyl-2-thioxo-4-imidazolidinylidene)-2-buten-1-ylidene)-alpha-methyl-, compd. with N,N-diethylethanamine (1:1);4-[(2Z)-2-[(2E,4E)-4-(1-heptyl-5-oxo-3-phenyl-2-thioxoimidazolidin-4-ylidene)but-2-en-1-ylidene]naphtho[2,3-d][1,3]thiazol-3(2H)-yl]butane-2-sulfonic acid - N,N-diethylethanamine (1:1)