Also Called: 2-Naphthalenesulfonic acid, 7-[[4-chloro-6-[(3-sulfophenyl) amino]-1,3,5-triazin-2-yl]methylamino]-4-hydroxy -3-[(2-sulfophenyl)azo]-, trisodium salt;2-Naphthalenesulfonic acid, 7-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]methylamino]-4-hydroxy-3-[(2-sulfophenyl)azo]-, trisodium salt;2-Naphthalenesulfonic acid, 7-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]methylamino]-4-hydroxy-3-[2-(2-sulfophenyl)diazenyl]-, sodium salt (1:3)