High purity clobetasol propionate CAS 25122-46-7

Product Name

Clobetasol Propionate

Batch No

200613

Manufacture Date

2020.06.13

Quantity

100KG

Exp Date

2023.06.12

Test Items

Specification

Test Results

Appearance

White to cream, crystalline powder

White  crystalline powder

Identification (by IR)

Conforms to CRS spectrum

Conforms

Melting point

Approximately 196℃

196℃

Specific rotation

+98^o - +104^o (dried substance)

Conforms

Loss on drying

≤2.0%

0.1%

Residue on ignition

≤0.10%

0.05%

Heavy metals

≤20ppm

Conforms

Related substances (by HPLC)

Any impurity ≤1.0%

Total impurities ≤2.5%

0.54%

1.22%

Assay (by HPLC)

97.0% ~ 102.0%

Calculated on dried basis

99.5%

Conclusion

Meet the specification according to USP43