| Customization: | Available |
|---|---|
| CAS No.: | 59-92-7 |
| Formula: | C9h11no4 |
|
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L-Dopa (Levodopa) is a prodrug of dopamine (DA), which itself has no pharmacological activity. It enters the central nervous system through the blood-brain barrier, and is transformed into DA by dopa decarboxylase to exert pharmacological effects.
Pharmacological effects: It is an anti-parkinsonian drug. It enters the brain tissue through the blood-brain barrier, and is decarboxylated by dopa decarboxylase to be converted into dopamine to play a role. For primary parkinsonism and non-pharmaceutical parkinsonia syndrome, the effect is better for moderate and mild cases.
| Product Name: | Levodopa |
| Synonyms: | 2-amino-3-(3,4-dihydroxyphenyl)propanoicacid;3,4-Dihydroxyphenylalanine(form2);3,4-Dihydroxyphenyl-L-alanine;3,4-DIHYDROXY-L-PHENYLALANINE;3,4-L-DIHYDROXYPHENYLALANINE;3-(3,4-DIHYDROXYPHENYL)-L-ALANINE;3-HYDROXY-L-TYROSINE;BETA-(3,4-DIHYDROXYPHENYL)-L-ALANINE |
| CAS: | 59-92-7 |
| MF: | C9H11NO4 |
| MW: | 197.19 |
| EINECS: | 200-445-2 |
| Product Categories: | Inhibitors;plant extract;Amino Acids;Biochemistry;Biological-modified Amino Acids;Dopamine receptor;Pharmaceutical;Nutritional Supplements;Natural Plant Extract;Amino Acids & Derivatives;Chiral Reagents;Intermediates & Fine Chemicals;Neurochemicals;Pharmaceuticals;Plant extracts;Herb extract;chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract;LARADOPA |
| Mol File: | 59-92-7.mol |
|
Testing Items |
Specifications |
Results |
|
Appearance |
White or almost white crystalline powder |
Almost white crystalline powder |
|
Identification IR |
Conforms to reference spectrum |
Conforms |
|
Appearance of Solution |
NMT BY6 |
|
|
PH |
4.5~7.0 |
6.0 |
|
Related substances |
|
|
|
Impurity A (%) |
NMT 0.1 |
Undetected |
|
Impurity B (%) |
NMT 0.5 |
Disregard (<0.03) |
|
Impurity C (%) |
NMT 0.2 |
Disregard (<0.03) |
|
Individual unknown Impurity (%) |
NMT 0.05 |
Disregard (<0.03) |
|
Total Impurity (%) |
NMT 1.0 |
Disregard (<0.03) |
|
Enantiomeric purity(D-Dopa) (%) |
NMT0.5 |
0.29 |
|
Heavy metal (%) |
NMT 0.001 |
<0.001 |
|
Loss on drying (%) |
NMT 1.0 |
0.04 |
|
Sulphated ash (%) |
NMT 0.1 |
0.05 |
|
Assay (on dried basis) (%) |
99.0~101.0 |
99.8 |
|
Residual Solvents: LOD (%) |
NMT0.5 |
0.04 |
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