Synonyms: 1,3,6-Naphthalenetrisulfonicacid,5-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-7-sulfo-1-naphthalenyl]azo]-2,5-dimethylphenyl]azo]-,tetrasodium salt (9CI); C.I. 263160; C.I. Reactive Brown 2; Cibacron Brown 4GR;Orbaktiv Brown T 4GRA; Ostazin Brown H 4GR; Procion Brown H 2G; Procion OrangeBrown H 2G; Reactive Brown 2; Reactive Yellow Brown K-GR