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3-AMINO-4-CARBETHOXYPYRAZOLE CAS6994-25-8Intermediate used in drug fasten purine alcohol.
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3-AMINO-4-PYRAZOLECARBOXAMIDE HEMISULFATE CAS27511-79-1Don't allopurinol intermediates.
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3-AMINO-4-CYANOPYRAZOLE CAS16617-46-2Used as the raw material for medicine zaleplon intermediates