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(2007/10/02)3,5-dimethyl-1H-pyrazole
methyl ester of 1-methylpyrazole-3,5-dicarboxylic acid
1H-pyrazole-3,5-dicarbonyl dichloride
3,5-pyrazoledicarboxylic acid
3-(methoxycarbonyl)-1-methyl-1H-pyrazole-5-carboxylic acid