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          Pyrazoles
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          > 3-Methylpyrazole
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          > 4-Chloropyrazole
          > 4-bromopyrazole
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          > 1-Methylpyrazole
          > 4-Bromo-1-methylpyrazole
          > 4-Nitro-3-pyrazolecarboxylic acid
          > 3,5-Dimethylpyrazole
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