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By certification 
Florfenicol 98% CAS 73231-34-2 
Product Name: Florfenicol
Synonyms: NUFLOR;AQUAFEN, Florphenicol
CAS Number: 73231-34-2
Characteristics:
Assay: At least 98%
Solubility: DMF (Slightly), DMSO (Slightly), Methanol (Slightly), Water (Slightly)
Density: 1.451 g/cm3
Formula: C12H14Cl2FNO4S
Package: 25Kg/Fiber Drum
Usage: Florfenicol is the fluorinated derivative of Thiamphenicol. Florfenicol will influence the bacterial protein synthesis. It is antibiotic for Vet use only.
COA—Florfenicol
Testing Item |
Standard |
Result |
Appearance |
White crystalline powder |
Complies |
Identification |
As Stipulated |
Complies |
M.P. |
152°C ~ 156°C |
155.0°C ~ 155.5°C |
Loss on drying |
≤0.5% |
0.19% |
Heavy Metal |
≤20ppm |
12ppm |
Total Impurity |
≤1.5% |
0.69% |
pH |
4.5-6.5 |
6.0 |
Chlorides |
≤0.02% |
<0.02% |
Burning Residual |
≤0.1% |
0.05% |
Fluorin Content |
≥ 4.8% |
4.9% |
Specific Optical Rotation |
-16~ -19° |
-17.5° |
Assay (Florfenicol) |
≥ 98.0% |
98.9% |
