34791-88-3 Benzenepropanamide, alpha-((4-methyl-2-nitrophenyl)azo)-N-1-naphthalenyl-beta-oxo- EINECS 252-217-7 Hydrocinnamamide, n-1-naphthyl-alpha-((2-nitro-p-tolyl)azo)-beta-oxo- N-(1-Naphthyl)-2-((2-nitro-p-tolyl)azo)-3-oxo-3-phenylpropionamide