2008-84-6

Einecs 217-921-0 ethyl 4-[[4-(ethoxycarbonyl)phenyl]azo]-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate 4-[(4-Ethoxycarbonylphenyl)azo]-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylic acid ethyl ester 1H-Pyrazole-3-carboxylic acid, 4-[2-[4-(ethoxycarbonyl)phenyl]diazenyl]-4,5-dihydro-5-oxo-1-phenyl-, ethyl ester