Professional Supply Raw Materials CAS13710-19-5 Tolfenamic Acid

• Varieties: Other
• Component: Chemical Synthetic Drugs
• Type: Other
• Pharmacodynamic Influential Factors: Other
• Storage Method: Prevent Exceeding Quality Guarantee Period
• Veterinary Reg. No.: Other
• Model NO.: Tolfenamic Acid CAS 13710-19-5
• CAS No: 13710-19-5
• Mf: C14h12clno2
• Appearance: White Crystal Powder
• Grade Standard: Medicine Grade
• Shelf Life: 2 Years
• Assay: 99%
• Transport Package: Bag, Carton, Drum
• Specification: 25kg/drum
• Trademark: Arshine
• Origin: China
• Production Capacity: 200 Tons/Year

Product Description

Professional Supply Raw Materials CAS13710-19-5 Tolfenamic Acid

Item	Specifications	Results
Appearance	White or slightly yellow,crystalline powder	Conform
Solubility	Practically insoluble in water,soluble in dimethylformamide,sparingly soluble in ethanol and in methylene chloride. It dissolves in dilute solutions of alkali hydroxides.	Conform
Identification	A.    Light absorption:the ration of the absorbance measured at the maximum at 286nm to that maximum at 345nm should be 1.2 to 1.4B.     IR absorption spectrophotometry should be conformedC.     TLC chromatography(254nm)should be conformed	1.2                   Conform     Conform
Melting point	About 213.0ºC	212.0-212.7
Related substances	Impurity A<0.1%;impurity B<0.05%	Conform
	Any other impurity <0.1%
	Total impurity<0.5%
Copper	Not more than 10ppm	Conform
Loss on drying	Not more than 0.5%	0.2%
Sulphated ash	Not more than 0.1%	<0.1%
Assay (basis on dry)	99.0%~101.0%	99.6%
Conclusion	The results conforms with BP2009/USP23 standards