12225-12-6 13515-40-7 2-((4-Chloro-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxobutanami- de 2-((4-Chloro-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxobutyramide Butanamide, 2-((4-chloro-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxo- C.I. 11738 C.I. Pigment Yellow 73 CI 11738 EINECS 236-852-7 Pigment yellow 73