1,3,5-Naphthalenetrisulfonic acid, 7-((4-((4-((5-chloro-2,6-difluoro-4-pyrimidinyl)amino)phenyl)azo)phenyl)azo)-, tripotassium salt 71720-86-0 EINECS 275-914-8 Tripotassium 7-((4-((4-((5-chloro-2,6-difluoro-4-pyrimidinyl)amino)phenyl)azo)phenyl)azo)naphthalene-1,3,5-trisulphonate