4-Nitro-5-trifluoromethyl-2H-pyrazole-3-carboxylic acid;4-Nitro-3-(trifluoromethyl)pyrazole-5-carboxylic acid;4-Nitro-5-(trifluoromethyl)pyrazole-3-carboxylic acid;4-Nitro-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid
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