2,7-NAPHTHALENEDISULFONIC ACID, 4-(4-CHLORO-6-ETHYLPHENYLAMINO-2-s-TRIAZINYLAMIN 2,7-Naphthalenedisulfonic acid, 4-(4-chloro-6-ethylphenylamino-2-s-triazinylamino)-5-hydroxy-6-(4-methyl-2-sulfophenylazo)-, trisodium salt 73816-74-7 Cerven brilantni ostazinova H-3B [Czech] EINECS 277-616-3 Trisodium 5-((4-chloro-6-(ethylphenylamino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-((4-methyl-2-sulphonatophenyl)azo)naphthalene-2,7-disulphonate