Tetrasodium 5-((4-chloro-6-((3-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)amino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-((2-sulphonatophenyl)azo)naphthalene-2,7-disulphonate; tetrasodium (3E)-5-({4-chloro-6-[(3-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)amino]-1,3,5-triazin-2-yl}amino)-4-oxo-3-[2-(2-sulfonatophenyl)hydrazinylidene]-3,4-dihydronaphthalene-2,7-disulfonate; Reactive Brilliant Red M-2B; C.I.Reactive Red 194; Reactive Red M-2B