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Name: allopurinol;

Chemical name: 4- hydroxy [3,4-d];

1H-, [3,4-d], and -4-

English Name: Allopurinol

Molecular formula: C5H4N4O

Molecular weight: 136.11

Structure type：

Physical and chemical properties: This product is white or white crystalline powder; no odor. The melting point of 320 DEG C (cut-off point), soluble in alkaline solution, slightly soluble in water and ethanol, insoluble in chloroform and ether.

Quality standard: the content above 98%, dry weight loss below 0.5%, burning residue is below 0.1%, the heavy metal 20ppm

Storage: shading, sealing preservation.

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