Levodopa
PRODUCT NAME: Levodopa
SYNONYMS: 3-(3,4-Dihydroxyphenyl)-L-alanine;L-3-(3,4-Dihydroxyphenyl)alanine;L-DOPA
MOLECULAR STRUCTURE:
CHEMICAL FORMULA: C9H11NO4
MOLECULAR WEIGHT: 197.19
CAS NO.: 59-92-7
EINECS: 200-445-2
STANDARD: USP 28
MAIN INDEX:
| Aspect |
White or slightly cream coloured, crystalline powder |
| Melting point |
295°C |
| Related substances |
3-(3,4,6-trihydroxyphenly)alanine |
no more than 0.1% |
| L-tyrosine |
no more than 0.1% |
| 3-Methoxy tyrosine |
no more than 0.5% |
| Any unknown impurity |
no more than 0.1% |
| Total impurities |
no more than 1.1% |
| Heavy metals |
No more than 0.002% |
| Assay |
99.0%~101.0% |
MAIN USE: Antiparkinsonian drug.
PACKING SPECIFICATION: 5kg/drum, 2 drum/carton
STORAGE: Preserved in a tight container, stored in a cool and dark place.
SHELF LIFE: Two years .
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