4-Amino-5-hydroxy-3-((4'-((4-hydroxy-2-((o-tolyl)amino)phenyl)azo)(1,1'-biphenyl)-4-yl)azo)-6-((4-sulphophenyl)azo)naphthalene-2,7-disulphonic acid, sodium salt 98705-48-7 EINECS 308-870-6