Betamethasone
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Product Name
Betamethasone
CAS No
378-44-9
Catalog No
SC-15701
Quantity
100kg
Batch No
20130301
Product Date
2013.03.01
Date of analysis
2013.03.01
Items of analysis
Specification
Results
Appearance
White or almost white crystalline powder
White crystalline powder
Identification
IR spectrum Conforms to CRS.
Conforms
Specific optical rotation
It should be +118°~+126°
+122.6°
Related substance（By HPLC）
Single impurity ≤ 1.0%
0.16%
0.5%≤Impurity that ≤1.0%
Conforms
Total impurity≤2.0%
0.30%
Loss on drying
≤ 0.5%
0.16%
Organic volatile substances
Methanol
Max.3000ppm
Conforms
Acetone
Max.5000ppm
Conforms
Ethylacetate
Max.5000ppm
Conforms
DMF
Max.880ppm
Conforms
Dichloromethane
Max.600ppm
Conforms
Assay (UV)
97.0% ~ 103.0%
99.25%
Remark
Declaration: For laboratory use by technically qualified individual only
Conclusion
It accords with the Enterprise Standard
Analyst: Jack Fu Check: Anne Zhang Date: 2013-03-01
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