1H-Pyrazole-4-carboxylic acid, 2,3-dihydro-3-oxo-, ethyl ester
Ethyl 2,3-dihydro-3-oxo-1H-pyrazole-4-carboxylate
4-Ethoxycarbonyl-5-hydroxypyrazole
4-Ethoxycarbonyl-Δ3-pyrazol-5-one
Ethyl 3-hydroxy-1H-pyrazole-4-carboxylate
NSC 43546
3-Oxo-2,3-dihydro-1H-pyrazole-4-carboxylic acid ethyl ester
3-Oxo-2,3-dihydro-1H-pyrazole-4-carboxylic acid ethyl ester
3-Hydroxypyrazole-4-carboxylic acid ethyl ester
Ethyl 3-oxo-1,2-dihydropyrazole-4-carboxylate