Product name: | Levodopa |
Molecular Formula: | C9H11NO4 |
Molecular Structure: | ![]() |
Molecular Weight: | 197.2 |
CAS No.: | 59-92-7 |
Description
Levodopa is a white or almost white, crystalline powder. It is slightly soluble in water, practically insoluble in ethanol (96 per cent). It is freely soluble in1 M hydrochloric acid and sparingly soluble in0.1 M hydrochloric acid.
Application
Dopamine precursor; treatment of Parkinson's disease.
Specification
Appearance | White or almost white, crystalline powder. |
Appearance of solution | Meets the requirements. |
PH | 4.5 - 7.0 |
D-dopa | ≤0.5% |
Heavy metals | ≤10ppm |
Loss on drying | ≤1.0% |
Sulfated ash | ≤0.1% |
Related substances: | |
(2S)-2-amino-3-(2,4,5-trihydroxyphenyl)propanoic acid | ≤0.1% |
(2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid | ≤0.5% |
3-methoxy-DL-tyrosine | ≤0.2% |
Unspecified impurities | ≤0.05% |
Total impurities | ≤1.0% |
Assay | 99.0%-101.0% |
Packing and Storage
Preserve in tight, light-resistant containers, store in a dry place, and prevent exposure to excessive heat.
Minimum Order
One package
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