Customization: | Available |
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CAS No.: | 532-43-4 |
Formula: | C12h17clln4OS |
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Analysis Item
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Unit
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Specification
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Test Method
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Result
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Appearance
|
----
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White or almost white crystals or crystalline powder
|
Eyeballing
|
White crystalline powder
|
Identification*
|
--
|
Meet the Requirement
|
IR, Physical and chemical identification
|
Conform
|
Melting point *
|
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About 248° with some decomposition
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Melting point meter
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Conform
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Solubility *
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Freely soluble in water,soluble in glycerol,slightly soluble in alcohol (96 per cent),practically insoluble in heptane, insoluble in ether and in benzene.
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Physical and chemical testing
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Freely Soluble in Water,Soluble in Glycerol,Slightly Soluble i Alcohol
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Assay
|
%
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98.5~101.0 (anhydrous substance)
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Potentiometric titration
|
99.2
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pH
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|
2.7~3.3
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Acidity meter test
|
3.1
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Appearance of Solution
|
---
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The solution is clear and not more intensely coloured than reference solution
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Colorimetric method
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Passes test
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Absorbance of Solution
|
----
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≤0.025
|
UV
|
0.005
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Impurity A*
|
%
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≤0.15
|
HPLC
|
0.01
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Impurity B*
|
%
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≤0.3
|
HPLC
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ND
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Related Impurity C* Substance S Unspecified Impurities
|
%
|
≤0.15
|
HPLC
|
0.01
|
|
%
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≤0.10
|
HPLC
|
0.01
|
(for each impurity)* Total Impurity*
|
%
|
≤0.5
|
HPLC
|
0.03
|
Related Compounds*
|
%
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≤1.0
|
HPLC
|
ND
|
Sulphates *
|
ppm
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≤300
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Colorimetric method
|
<300
|
Water
|
%
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≤5.0
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Water Determination
|
0.95
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Sulphated ash / Residue on Ignition*
|
%
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≤0.1
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Muffle
|
0.08
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Limit of Nitrate*
|
|
No brown ring is produced at the junction of the two layers
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Physical and chemical analysis
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Passes test
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Lead*
|
mg/kg
|
≤2
|
Flame Atomic Absorption Spectrophotometric Method
|
<2
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Residual Solvent*
|
ppm
|
≤3000
|
GC
|
332.66
|
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