High quality Dihydroartemisinin for antimalarial in stock
Function
Specification
Items |
Requirements |
Results |
Description |
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Appearance: |
White needle crystal, odorless, taste bitter |
Conforms |
Solubility |
Freely soluble in chloroform; soluble in acetone, sparingly soluble in methanol or ethanol; practically insoluble in water |
Conforms |
Melting point |
145~150℃, with decomposition |
146.3~146.8℃ |
Identification |
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A bluish purple color is produced |
Conforms |
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A red color is produced which changes gradually to brown on standing |
Conforms |
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Should show dextral optical properties |
Conforms |
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Infrared absorption spectrum of test and standard(or infrared reference spectra No. 220) are concordant |
Conforms |
Test |
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1) Related substance (TLC) |
Single clear spot should be obtained with solution (2). Any spot obtained with reference solution, other than the principal spot, not more than one is obtained, and is not more intense than the principal spot obtained with solution (1) (2.0%). |
Conforms |
2) Loss on drying |
≤ 0.5% |
0.29% |
3) Residual on Ignition |
≤ 0.1% |
0.07% |
4) Heavy metal (TLC) |
≤ 10ppm |
Conforms |
Assay (on dried basis) |
98.0% ~102.0% (HPLC) |
99.3% |
Conclusion: The product conforms to Ch.P.2010 |