Tetralithium 6,6'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-amino-5-hydroxynaphthalene-1,3- disulfonate)

tetralithium 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonate]

6,6'-[(3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bisazo]bis[4-amino-5-hydroxynaphthalene-1,3-disulfonic acid]tetralithium salt