Molecular Formula: C16H12Cl2N4O4 Formula Weight: 395.2
2-[(4-Chloro-2-nitrophenyl)azo]-N-(2-chlorophenyl)-3-oxobutyramide;2-[2-(4-Chloro-2-nitrophenyl)diazenyl]-N-(2-chlorophenyl)-3-oxobutanamide