Synonyms: Procion Red H 3B; Xiron Brilliant Red B-HD;trisodium; Cerven reaktivni 3 [Czech]; Procion Brilliant Red H 3B; C.I. Reactive Red 3;(3Z)-5-[(4-anilino-6-chloro-1,3, 5-triazin-2-yl)amino]-4-oxo-3-[(2-sulfonatophenyl)hydrazinylidene] naphthalene-2,7-disulfonate; Ostazin Brilliant Red H 3B;