Synonyms: 1-(6-((5-((4-Amino-9,10-dihydro-9,10-dioxo-3-sulphonatoanthryl)amino)-2-sulphonatophenyl)amino)-1,4-dihydro-4-oxo-1,3,5-triazin-2-yl)-4-carboxylatopyridinium trisodium chloride;trisodium 1-[4-[[5-[(4-amino-9,10-dioxo-3-sulfonato-1-anthryl)amino]-2-sulfonato-phenyl]amino]-6-oxo-3H-1,3,5-triazin-2-yl]pyridin-1-ium-4-carboxylate chloride