14359-20-7 2,2'-((2,2',5,5'-Tetrachloro(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(N-(4-chloro-o-tolyl)-3-oxobutyramide) 39317-50-5 Butanamide, 2,2'-((2,2',5,5'-tetrachloro(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(N-(4-chloro-2-methylphenyl)-3-oxo- EINECS 238-330-4