Certificate Of Analysis
Product Name
Chlorhexidine digluconate solution 20%
Batch No.
2015070801
Sample Qty Base
1400KGS
Date of Production
2015.07.08
Analysis Date
2015.07.09
Standard
BP 2012&EP8.0
Expiry Date
2017.07.07
CAS No.:
18472-51-0
Packaging
20kgs/Drum
Item
Test Results
Appearance
Almost colourless or pale-yellowish liquid.
Complies
Solubility
Miscible with water, with not more than 3 parts of acetone and with not more than 5 parts of ethanol (96 per cent).
Identification
First identification A, B.
Second identification B, C, D.
A) Infrared absorption spectrophotometry.
Comparison chlorhexidine CRS.
B) Thin-layer chromatography.
C) Dry at 100-105℃. The residue melts at 132℃to 136℃.
D) Chemical Reaction:a deep red colour is produced.
Relative density
1.06 to 1.07.
1.068
pH
5.5 to 7.0.
6.2
Chloroaniline
≤2.5%, calculated with reference to chlorhexidine
digluconate at a nominal concentration of 200 g/l.
<2.5%
Related substances
Total impurity
≤3.0%
0.212%
Disregard Limit
0.06%
Assay
190 g/l to 210 g/l.
203g/l
Storage&Packaging
Preserve in well-sealed containers, protected from light.
Conclusion
The batch conforms to the BP 2012&EP8.0 standard
Reported By
张妮娜
Checked By
王成竹
Approved By
李玉祥
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