1,3,5-Naphthalenetrisulfonic acid, 7-((4-amino-2-((5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl)amino)-5-sulfophenyl)azo)-, sodium salt 7-((2-((5-Chloro-4-methyl-2-(methylsulfonyl)-6-pyrimidiyl)amino)-4-amino-5-sulfophenyl)azo)-1,3,5-naphthalenetrisulfonic acid, sodium salt 7-((4-Amino-2-((5-chloro-6-methyl-2-(methylsulphonyl)-4-pyrimidinyl)amino)-5-sulphophenyl)azo)naphthalene-1,3,5-trisulphonate acid, sodium salt 72639-24-8 EINECS 276-747-3