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1,3-Dimethylpyrazole-5-carboxylic acid 3-(TERT-BUTYL)-1-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE 1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 1,5-DIMETHYL-1H-PYRAZOLE-3-CARBALDEHYDE 5-Chloro-1,3-dimethyl-1H-pyrazole-4-carbaldehyde Ethyl 1,3-dimethylpyrazole-5-carboxylate 1-ETHYL-3-METHYL-4-NITRO-1H-PYRAZOLE-5-CARBOXYLIC ACID ETHYL 3-METHYL-1-PHENYLPYRAZOLE-5-CARBOXYLATE