2-[4-[(2-chloro-4-nitrophenyl)azo]-2,4-dihydro-5-methyl-3-oxo-3H-pyrazol-2-yl]ethyl carbanilate

4-(2-Chloro-4-nitrophenylazo)-2,4-dihydro-5-methyl-2-[2-(phenylaminocarbonyloxy)ethyl]-3H-pyrazol-3-one