Synonyms: Hydrogen 5-chloro-2-((5-chloro-3-(3-sulphonatopropyl)-3H-benzothiazol-2-ylidene)methyl)-3-(3-sulphonatopropyl)benzothiazolium, compound with triethylamine (1:1);Benzothiazolium, 5-chloro-2-((5-chloro-3-(3-sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-3-(3-sulfopropyl)-, hydroxide, inner salt, compd. with N,N-diethylethanamine (1:1);N,N-diethylethanaminium 3-[(2Z)-5-chloro-2-{[5-chloro-3-(3-sulfonatopropyl)-1,3-benzothiazol-3-ium-2-yl]methylidene}-1,3-benzothiazol-3(2H)-yl]propane-1-sulfonate;hydrogen 3-(5-chloro-2-{(E)-[5-chloro-3-(3-sulfonatopropyl)-1,3-benzothiazol-2(3H)-ylidene]methyl}-3a,4-dihydro-1,3-benzothiazol-3-ium-3-yl)propane-1-sulfonate N,N-diethylethanamine (1:1)