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

Certification of Analysis

Items of analysis	Specification	Results
Appearance	White or almost white powder	Almost white powder
PH	4.2~7.0	5.4
Specific rotation	+206°~214°	+210°
Water	≤1.0%	0.5%
Related substances	Single impurity≤0.5%	0.3%
Related substances	Total impurity ≤4.0%	1.0%
Residual solvent	Methanol≤0.3%	0.2%
	Ethanol≤0.5%	ND
	Acetonitrile ≤ 0.041%	ND
	Acetone ≤ 0.5%	0.1%
	Ethyl acetate ≤ 0.5%	ND
	Tetrahydrofuran ≤ 0.072%	ND
	Dichloromethane ≤ 0.06%	ND
Heavy metals	≤20%ppm	＜20ppm
Assay	92.7%min	94.1%
Remark	Declaration: For laboratory use by technically qualified individual only Sealed、Cool、Dark and dry place
Conclusion	It accords with the Enterprise Standard

Analyst: Jack Fu Check: Anne Zhang Date: 2013-10-17