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CAS号: 79746-67-1 英文名称: 5-Hydroxy-2H-Pyrazole-3-Carboxylic acid Methyl ester 英文同义词: methyl 5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate;5-Hydroxy-2H-Pyrazole-3-Carboxylic acid Methyl ester;4,5-Dihydro-5-oxo-1H-pyrazol-3-carbonsaeure-methylester;4,5-Dihydro-5-oxo-1H-pyrazole-3-carboxylic acid methyl ester;1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-, methyl ester 中文名称: 5-羟基-2H-吡唑-3-羧酸甲酯 中文同义词: 5-羟基-2H-吡唑-3-羧酸甲酯;4,5-二氢-5-氧代-1H-吡唑-3-羧酸甲酯 分子式: C5H6N2O3 分子量: 142.11 熔点 : 190-191 °C 密度 : 1.51±0.1 g/cm3(Predicted) 酸度系数(pKa): 11.76±0.40(Predicted)