2,2'-[3,3'-Dimethoxy-4,4'-biphenylylenebis(azo)]bis(3-oxo-N-o-tolylbutanamide)

2,2'-[(3,3'-Dimethoxy-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutanamide]

2,2'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]

Butanamide, 2,2'-[(3,3'-dimethoxy[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl )-3-oxo-