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Chemical compound
L-DOPA
L-DOPA-2D-skeletal
L-DOPA-3D
Nomenclature & Identifiers
Systematic name (S)-2-amino-3-(3,4-dihydroxyphenyl) propanoic acid.
Other names L-3,4-dihydroxyphenylalanine, Levodopa.
CAS number 59-92-7
PubChem ID 6047
Properties
Formula C9H11NO4
Molar mass 197.19 g mol-1
Hazards
Related compounds
Related compounds Dopamine, phenethylamine, phenylalanine, tyrosine.



L-DOPA (L-3,4-dihydroxyphenylalanine), also known as Levodopa, is a naturally-occurring phenethylamine alkaloid. It is important in humans as a precursor to the neurotransmitter dopamine (and therefore also epinephrine and norepinephrine) and is synthesised from the amino acid L-tyrosine by the enzyme tyrosine hydroxylase. As a result of this L-DOPA can be taken as a dietary supplement to raise the level of dopamine in the brain. For the same reason, L-DOPA is also used as a medication to treat the symptoms of Parkinson's disease (which results from a permenant decrease in the levels of dopamine within the nervous system).

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