8-Amino-5-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-3-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-1,7-anthracenedisulfonic acid

8-amino-5-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-3-sulphophenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-1,7-disulphonic acid