Synonyms: 2-Anthracenesulfonicacid,1-amino-4-[[3-[(4-chloro-6-ethoxy-1,3,5-triazin-2-yl)amino]-2,4,6-trimethyl-5-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-,disodium salt (9CI); Brilliant Blue K 3R; C.I. 621521; C.I. Reactive Blue 74;Cibacron Pront Blue 3R; Procion Blue H 4R; Procion Brilliant Blue H 4R;Reactive Blue 74; Reactive Blue K 3R; Reactive Brilliant Blue K 3R