7-HYDROXY-8-((4'-((4-HYDROXYPHENYL)AZO)-3,3'-DIMETHYL(1,1'-BIPHENYL)-4-YL)AZO)NAPHTHALENE-1,3-DISULFONIC ACID
7-hydroxy-8-((4'-((4-hydroxyphenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)naphthalene-1,3-disulfonic acid