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[Product Name] L-DOPA
[Other Names] Levodopa, Mucuna pruriens extract,
(S)-2-Amino-3-(3,4-dihydroxyphenyl)propanoic acid
[Botanical Source] Mucuna pruriens (L.) DC.
[Part Used] Seed
[Active Ingredient] L-DOPA
[Specification] 99%
[Test Method] Titration
[Color] White
[CAS No.] 59-92-7
Item |
Standard |
Result |
Content |
99.00%~101.00% |
99.67% |
Appearance |
White or slightly cream-colored crystalline powder |
White crystalline powder |
Solubility |
Slightly soluble in water, practically insoluble in alcohol and in ether |
Meets the requirements |
Identification |
Must comply A B C D Infrared Absorption |
Meets the requirements Infrared Absorption |
PH |
4.50~7.00 |
5.30 |
Optical Rotation |
-1.27°~-1.34° |
-1.31° |
Absorbance |
137.0~147.0 |
139.5 |
Related Substances |
≤0.50% |
0.48% |
Heavy Metals |
≤10ppm |
5ppm |
Loss on Drying |
≤1.00% |
0.39% |
Sulphated Ash |
≤0.10% |
0.04% |
Particle Size |
100 mesh |
100 mesh |
* L-DOPA is the precursor to the neurotransmitters dopamine, norepinephrine (noradrenaline), and
epinephrine (adrenaline) collectively known as catecholamines.
* Herbal extracts containing L-DOPA are available; high-yielding sources include Mucuna pruriens
(velvet bean). and broad beans.
* Mucuna pruriens is a tropical legume native to Africa and tropical Asia and widely naturalized and
cultivated. Its English common names include velvet bean, cowage, lacuna bean, Lyon bean, Donkey
eye, monkey tamarind, and Buffalo beans (the last also refers to Thermopsis rhombifolia).
* The mature seeds of the plant contain about 3.1–6.1% L-DOPA, with trace amounts of
5-hydroxytryptamine (serotonin), nicotine, DMT-n-oxide, bufotenine,
and beta-carboline.
Function
For primary parkinsonism and non drug induced parkinsonism.