Synonyms: 1H-Pyrazole-3-carboxylic acid, 4,4'-(carbonylbis(imino(3-sulfo-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulfo-3,1-phenylene)-2,1-diazenediyl))bis(4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, sodium salt (1:8);4-((4-((4-((4-((((4-((4-((3-((3-Carboxy-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl)azo)-4-sulfophenyl)amino)-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)amino)carbonyl)amino)-3-sulfophenyl)amino)-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)azo)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid, octasodium salt;1H-Pyrazole-3-carboxylic acid, 4,4'-(carbonylbis(imino(3-sulfo-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulfo-3,1-phenylene)azo))bis(4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, octasodium salt;octasodium 4-[5-[[4-[[4-[[4-[[4-[[3-[[3-carboxylato-5-oxo-1-(4-sulfonatophenyl)-4H-pyrazol-4-yl]azo]-4-sulfonato-phenyl]amino]-6-chloro-1,3,5-triazin-2-yl]amino]-2-sulfonato-phenyl]carbamoylamino]-3-sulfonato-phenyl]amino]-6-chloro-1,3,5-triazin-2-yl]amino]-2-sulfonato-phenyl]azo-5-oxo-1-(4-sulfonatophenyl)-4H-pyrazole-3-carboxylate