Synonyms: 2,7-Naphthalenedisulfonicacid,5-[(4-anilino-6-chloro-s-triazin-2-yl)amino]-4-hydroxy-3-[(o-sulfophenyl)azo]-,trisodium salt (7CI); 2,7-Naphthalenedisulfonic acid,5-[[4-chloro-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-,trisodium salt (9CI); C.I. Reactive Red 3, trisodium salt (8CI); C.I. 18159;C.I. Reactive Red 3; Ostazin Brilliant Red H 3B; Procion Brilliant Red H 3B;Procion Brilliant Red H 3BS; Procion Red H 3B; Procion Red P 4B; Reactive Red 3