85631-91-0 EINECS 288-041-2 Trisodium 4,5-dihydro-4-((4-(6-methyl(2,6'-bibenzothiazol)-2'-yl)-2-sulphonatophenyl)azo)-5-oxo-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate