levodopa is one of the former parts of synthetic removing adrenaline A,dopa amineetc.
levodopa
cas no:59-92-7
plant source:seed of M.cochin chinensis(Lonr.).
action:
a.improve the level of dopa aminein cerebral tissues.
b.effect on the symptoms caused by manganese and cobalt poisoning.
c.effect on the liver coma caused by liver function exhaustion
CERTIFICATE OF ANALYSIS
Product name | levodopa | Lot number | 100307 |
quantity | 150kg | Product date | 2010.03.31 |
Expire date | 2013.03.30 | According to | BP2007 |
Test Item | Specifications | Results |
characters | A white or slightly creamy Crystalline powder, odorless | Complies |
Color and Solubility | Complies | Complies |
Identification | Positive | Positive |
Acidity or alkalinity PH | PH4.5~7.0 | PH=4.7 |
Light absorption | 137-147 | 140.6 |
Optical rotation | -1.27°~-1.34° | 1.30° |
Heavy metals | ≤10ppm | ≤10ppm |
Related substances | Complies | Complies |
Loss on drying | ≤1.0% | 0.35% |
Sulphated ash | ≤0.1% | ≤0.1% |
Assay | 99.0~101% | 99.05% |
Storage conditions | Preserve in well sealed containers, store in cool and dry place, keep away from direct light and heat. | Complies |
