2-[(4-Methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramid 2,2'-[(3,3'-Dichlor[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramid] Calciumbis[4-[[1-[[(2-chlorphenyl)amino]carbonyl]-2-oxopropyl]azo]-3-nitrobenzolsulfonat] 2,2'-[(3,3'-Dichlor[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methoxyphenyl)-3-oxobutyramid] 2-[[1-[[(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]benzoesure 2,2'-[(3,3'-Dichlor[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chlor-2,5-dimethoxyphenyl)-3-oxobutyramid] Benzidin