Synonyms: Copper,[trihydrogen2-[(4,6-dichloro-s-triazin-2-yl)amino]-5-hydroxy-6-[(2-hydroxy-5-sulfophenyl)azo]-1,7-naphthalenedisulfonato(2-)]-,trisodium salt (7CI); Cuprate(3-),[2-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-hydroxy-6-[(2-hydroxy-5-sulfophenyl)azo]-1,7-naphthalenedisulfonato(5-)]-,trisodium; 1,7-Naphthalenedisulfonic acid,2-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-hydroxy-6-[(2-hydroxy-5-sulfophenyl)azo]-,copper complex; C.I. 17965; C.I. Reactive Red 6; Procion Red MX-B; ProcionRubine MX-B; Procion Ruby MX-B; Reactive Red 6