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tolfenamic acid cas 13710-19-5

Chemical Name: Tolfenamic acid

CAS: 13710-19-5

Molecular Fomula:C14H12ClNO2

Molecular Weight:261.7

Appearance: White or slightly yellow, crystalline powder

Purity: 99.0~101.0%

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Description

Tolfenamic acidQuick Details

Chemical Name:Tolfenamic acid

CAS: 13710-19-5

Molecular Fomula:C14H12ClNO2

Molecular Weight:261.7

Chemical Structure:Tolfenamic acid Structure

Appearance: White or slightly yellow, crystalline powder

Purity: 99.0~101.0%

Tolfenamic acidTypical Properties

Inspect Item Specification Results
Appearance White or slightly yellow, crystalline powder Conforms
Solubility Practically insoluble in water, soluble in dimethylformamide, sparingly soluble in ethanol and in methylene chloride Conforms
Identification A. Light absorption: the ratio of the absorbance measured at the maximum at 286nm to that maximum at 345nm should be 1.2 to 1.4 Conforms
B. IR absorption spectrophotometry should be conformed 1.2
C. TLC chromatography (245nm) should be conformed Conforms
Melting point 210~214℃ 212.1~212.6℃
Related substances Impurity A<0.1%;Impurity B<0.05% Conforms
Any other impurity<0.1% Conforms
Total impurity<0.5% Conforms
Copper Not more than 10ppm Conforms
Loss on drying Not more than 0.5% 0.20%
Sulphated ash Not more than 0.1% <0.1%
Assay (basis on dry) 99.0~101.0% 99.70%
Conclusion The results conforms with EP6.0 standards

Tolfenamic acid Usage

This product is used in the synthesis of non-steroidal anti-inflammatory analgesics.

Tolfenamic acid Packaging

25 kg/drum.