101080-12-0

methyl 4-methyl-4,5-dihydro-1H-pyrazole-5-carboxylate 2-Pyrazoline-5-carboxylicacid,4-methyl-,methylester(6CI) 1H-Pyrazole-5-carboxylic acid, 4,5-dihydro-4-methyl-, methyl ester