Betamethasone_CERTIFICATE OF ANALYSIS_DOCUMENTS & REFERENCE_Labseeker-Find chemicals, pharmaceuticals for your lab.

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