Function: | Vitamins and Minerals Deficiency Drug |
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Grade Standard: | Medicine Grade |
Type: | Chemical Reagent |
State: | Powder |
Volatile: | Not Volatile |
CAS: | 59-92-7 |
Samples: |
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Customization: |
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Appearance | White to off-white powder |
Identification | IR |
The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in assay | |
Optical rotation | -160°~-167° |
Loss on drying | ≤0.5% |
Residue on ignition | ≤0.1% |
Heavy metals(Pb) | ≤20ppm |
Organic impurities | Levodopa related compound Aa≤0.1% |
L-Tyrosine≤0.1% | |
Levodopa related compound B≤0.5% | |
L-Veratrylglycineb≤0.1% | |
Any unspecified impurity ≤0.1% | |
Total impurities≤1.1% | |
Assay | 98.0%~102.0%(on dried basis) |
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