2-Anthracenesulfonic acid, 1-amino-4-3-4-chloro-6-(sulfophenyl)amino-1,3,5-triazin-2-ylamino-2,4,6-trimethyl-5-sulfophenylamino-9,10-dihydro-9,10-dioxo-, trisodium salt

trisodium 1-amino-4-[[3-[[4-chloro-6-[(sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]-2,4,6-trimethyl-5-sulphonatophenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate