1H-Pyrazole-3-carboxylic acid, 4-[[4-[[4-[7-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5,9-disulfo-2H -naphtho[1,2-d]triazol-2-yl]-7-sulfo-1-naphthalenyl]azo]-2-sulfophenyl]azo ]-4,5-dihydro-5-