74620-20-5 Butanamide, N,N'-(2,5-dimethyl-1,4-phenylene)bis(2-((2,4-dichlorophenyl)azo)-3-oxo- EINECS 277-936-3 N,N'-(2,5-Dimethyl-1,4-phenylene)bis(2-((2,4-dichlorophenyl)azo)-3-oxobutyramide) N,N'-(2,5-Dimethyl-p-phenylene)bis(2-((2,4-dichlorophenyl)azo)acetoacetamide)