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)-, hexasodium salt 70900-42-4 EINECS 275-010-3