Diclofenac sodium CAS NO.: 15307-79-6
Diclofenac sodium (BP2015)
Appearance:white or slightly yellowish, slightly hygroscopic, crstalline powder
Solubility: Sparingly soluble in water, freely soluble in methanol, soluble in ethanol(96 percent), slightly soluble in acetone.MP: about 280 degree with decompostion.
Identify: (A) IR-Spectrum
(B) TLC Chromatogram
(C) A blue colour develops and a precipitates is formed.
(D) The solution gives reaction(b) of sodium
Appearance of solution: 1. Clear 2. Absorption of sodium salt≤0.05
Related substances: any individual impurity NMT 0.1%
Total impurity NMT 0.4%
Heavy metal: NMT 10ppm
Loss on drying: NMT 0.5%
Assay(Titration): 99.0%~101.0% (on dried substance)
Conclusion: It complies with the requirements of the BP2015.
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