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Product Name: Florfenicol

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CAS No: 76639-94-6

Melecular Formula: C12H14Cl2FNO4S

Molecular Weight: 358.2133


Chemical Structure:


CERTIFICATE OF ANALYSIS

Product Name

Florfenicol

Reference

China Veterinary Drug Standard(2010)

Shelf Life

3years

Item

Specification

Result

Character

White or almost white crystalline powder

Almostwhite crystalline powder

Solubility

Very soluble in dimethylformamide, soluble in methanol, sparingly soluble in glacial acetic acid, very slightly soluble in water or in chloroform.

 

conform

Melting point

152~156℃

153.8℃~154.6℃

Specific optical rotation

 

-16℃~-19℃

 

-18℃

 

Identification

The retention time of the major peak in the chromatogram of the Assay  preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.

 

conform

 

IR spectra is consistent with CRS.

conform

Check

 

PH

4.5~6.5

6.0

Chlorides

≤0.02%

conform

Fluorides

≥4.8%

5.0%

Related substances

Individual impurity≤0.5%

0.31%

Total impurities≤2.0%

1.09%

Water

≤0.5%

0.06%

Residue on ignition

 

≤0.1%

 

0.03%

Heavy metals

≤20ppm

conform

Assay

Content of C12H14CI2FNO4S≥98.0%

99.0%

Conclusion:Complies with China Veterinary Drug Standard(2010)

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