10116-07-1 2,3-Dimethyl-4-(N-methyl-N-carbomethoxyamino)-1-phenylpyrazol-5-one hydrate 3-Pyrazoline-4-carbamic acid, 5-oxo-N,2,3-trimethyl-, methyl ester, hydrate 5-Oxo-N,2,3-trimethyl-3-pyrazoline-4-carbamic acid methyl ester hydrate