trisodium 4-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulphonato-1-anthryl)amino]-6-[(2,5,6-trichloropyrimidin-4-yl)amino]benzene-1,3-disulphonate

4-[[(4-Amino-9,10-dihydro-9,10-dioxo-3-sulfoanthracen)-1-yl]amino]-6-[(2,5,6-trichloro-4-pyrimidinyl)amino]-1,3-benzenedisulfonic acid trisodium salt