3,3'-((4-((2-Chloro-4-nitrophenyl)azo)-3-methylphenyl)imino)bispropiononitrile 4297-28-3 EINECS 224-303-4 Propanenitrile, 3,3'-((4-((2-chloro-4-nitrophenyl)azo)-3-methylphenyl)imino)bis- Propanenitrile, 3,3'-((4-((2-chloro-4-nitrophenyl)azo)3-methylphenyl)imino)bis-