Detailed Product Description

Product: Trimethoprim

Chemical name: 5-[(3, 4, 5-trimethoxyphenyl)methyl]-2, 4-pyrimidinediamine
Characters: White or yellowish-white powder, very slightly soluble in water, slightly soluble in alcohol.
Usage: Antibiotic drug
Packing: 25kg/fiber drum, or 25kg/carton, or according to customers'requirement.
Characters: White or yellowish-white powder, very slightly soluble in water, slightly soluble in alcohol.
Melting point: 201-201.5
Specific absorbance: 243
IR-spectrum: Complies with reference spectrum
Chemical reaction: Green fluorescence at 365nm
Appearance of solution: Less intensely colored than reference solution BY 7
Loss on drying: 0.3 %
Sulphated ash: 0.04 %
Assay: 99.9 %.

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