Product Name Pyrimethamine
Chemical Name 2,4-diamino-5-(p-chlorophenyl)-6-ethylpyrimidine
English Name Pyrimethamine
Molecular FormulaC₁₂H₁₃CIN₄   Molecular Weight  248.71
This product is 5-(4-chlorophenyl)-6-ethylpyrimidine-2,4-diyldiamine. C12H13ClN4 content cannot lower than 99.0%.
【Property】 White crystalline powder; no odor and taste.
　　         Slightly soluble in ethyl alcohol or trichloromethane, poorly solublei n water.
                Melting Point Melting Point(appendix VI C) is 239 ～242℃.
【Use】Pharmaceutical APIs, the product is mianly used in the prevention of malarious and in the treatment of toxoplasmosis.
【Packing】25KG/fiber drum
【Shelf Life】2 years

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