Troxerutin
1)95% Troxerutin light yellow powder HPLC
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Items |
Specification |
Result |
Characters |
||
Appearance |
yellowish-green, crystalline powder, hygroscopic |
Complies |
Solubility |
Free soluble in water |
Complies |
Slightly soluble in 96% ethanol |
Complies |
|
Practically insoluble in methylene chloride |
Complies |
|
Identification |
||
Method A |
IR absorption(EP7.0 2.2.24) |
Complies |
Method B |
HPLC chromatograms(obtained in test) |
Complies |
Tests |
||
Composition(EP7.0 2.2.29) |
Principal peak ≥80% |
81.99% |
Other peak≤5 %,except only one peak≤10% |
Complies |
|
Ethylene oxide((EP7.0 2.2.28) |
≤1ppm |
Complies |
Heavy metals(EP7.0 2.4.8) |
≤10ppm |
Complies |
Loss on drying (EP7.0 2.2.32) |
≤5.0% |
3.47% |
Sulphated ash(EP7.0 2.4.14) |
≤0.4% |
0.09% |
Methanol(EP7.0 2.2.28) |
≤3000ppm |
1944.2ppm |
Assay (anhydrous substance) UV (EP7.0 2.2.25) |
95.0-105.0% |
98.51% |
Microbiological test |
||
Total plate count |
≤1000CFU/g |
<10 CFU/g |
Yeast & Mould |
≤100CFU/g |
<10 CFU/g |
E.Coli |
Absent |
ND |
Pseudomonas aeruginosa |
Absent |
ND |
Conclusion: The test results conform to EP7.0 |
||
Storage: In an airtight container,protected from light |
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