| 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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