ethyl 4-[[4-[[2-(allyloxy)ethoxy]carbonyl]phenyl]azo]-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate

4,5-Dihydro-5-oxo-1-phenyl-4-[[4-[[2-(2-propenyloxy)ethoxy]carbonyl]phenyl]azo]-1H-pyrazole-3-carboxylic acid ethyl ester