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Diclofenac sodium
Name:Diclofenac sodium
CAS NO:15307-79-6
Characteristics:white crystalline powder
Used:as anti-inflammatory analgesic
The detailed specifications are as below:
Item of testing  Inspection Standard
Characters White or slightly yellowish crystalline
Powder, slightly hygroscopic
Solubility Sparingly soluble in water, freely soluble in methanol, ethanol (96%) ;
Slightly soluble in acetone; practically insoluble in ether
Identify (A) (A)IR-Spectrum
  (D) Reaction of sodium salt
Acidity or alkalinity 6.5-7.5
Melting point 278-279℃
Appearance of solution Clear
  Absorption of sodium salt ≤0.05
Related Substances Single impurity max 0.2%
  Total impurity max 0.5%
Heavy metal Max 10ppm
Loss on drying Max 0.5%
Assay 99.0-101.0%