Metronidazole base

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Characteristics：a white or yellowish crystalline powder, slightly soluble in water,in acetone
in alcohol and in methylene chloride,very slightly soluble in ether.
Melting point: 159～163℃
Loss on drying: 0.5% MAX
Sulphated ash: 0.1% MAX
Heavy metal: 20PPM MAX
Specific absorbance: 365～389
Assay: 99.0%～101.0% C6H9N3O3

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