Hydrogen 5,6-dichloro-2-[3-[2H-benzimidazol-2-ylidene-5,6-dichloro-1-ethyl-1,3-dihydro-3-(4-sulfonatobutyl)]propen-1-yl

5,6-dichloro-1-ethyl-3-sulfobutyl-2-(3-(5,6-dichloro-1-ethyl-3-sulfobutyl ; 1h-benzimidazolium,5,6-dichloro-2-[3-[5,6-dichloro-1-ethyl-1,3-dihydro-3-(4-su ; hyd ; 5-chloro-2-(2-((5-chloro-3-(4-sulfobutyl)-2-(3h)-benzothiazolylidene) methyl-1-ethenyl)-3-(4-sulfopropyl) benzothiazolium hydroxide, inner salt,sodium salt ; 5,6-dichloro-2-[[5,6-dichloro-1-ethyl-3-(4-sulfobutyl)benzimidazol-2-ylidene]propenyl]-1-ethyl-3-(4-sulfobutyl)benzimidazolium inner salt sodium salt ; roxide,innersalt,sodiumsalt ; 5,6-dichloro-1-ethyl-3-sulfobutyl-2-(3-(5,6-dichloro-1-ethyl-3-sulfobutyl benzimidazolinylidene-1-propenyl)benzimidazolium hydroxide, inner salt, sodium salt ; 1-ethyl-2-[3-[1-ethyl-2,3-dihydro-3-[4-(sodiosulfo)butyl]-5,6-dichloro-1h-benzimidazole-2-ylidene]-1-propenyl]-3-(4-sulfonatobutyl)-5,6-dichloro-1h-benzimidazole-3-ium ; 5,6-dichloro-2-[[5,6-dichloro-1-ethyl-3-(4-sulfobutyl)-benzimidazol-2-ylidene]-propenyl]-1- ethyl-3-(4-sulfobutyl)-benzimidazolium hydroxide, inner salt, sodium salt ; 5,6-dichloro-1-ethyl-3-sulfobutyl-2-(3-(5,6-dichloro-1-ethyl-3-sulfobutyl benzimidazolinylidene-1-propenyl) benzimidazolium hydroxide, inner salt,sodium salt