1,4-Benzenedisulfonic acid, 2-(4,5-dihydro-3-methyl-4-((4-((4-((2-methyl-4-((2,5,6-trichloro-4-pyrimidinyl)amino)phenyl)azo)benzoyl)amino)-2-sulfophenyl)azo)-5-oxo-1H-pyrazol-1-yl)- 2-(4,5-Dihydro-3-methyl-4-((4-((4-((2-methyl-4-((2,5,6-trichloropyrimidin-4-yl)amino)phenyl)azo)benzoyl)amino)-2-sulphophenyl)azo)-5-oxo-1H-pyrazol-1-yl)benzene-1,4-disulphonic acid 71750-84-0 EINECS 275-986-0