SHEET /m/l-dopa · PubChem CID 6047 · CAS 59-92-7 · REV 2026.07
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L-DOPA
from sourceC9H11NO4 · 197.19 g/mol
levodopa · Levodopum · Dihydroxy-L-phenylalanine · Bendopa
What is L-DOPA?
The molecule the brain turns into dopamine, and the cornerstone of Parkinson's treatment. It occurs naturally in fava beans and velvet beans. from source
CategoryPrescription medicine
Fig. 1 · 2D structure RDKit
SMILES
C1=CC(=C(C=C1C[C@@H](C(=O)O)N)O)OWhere you'll find it
Dispensed on prescription, not sold on a shelf. See the rest of the prescription medicine group.
Relative acute toxicity from source
Animal study data · LD50
- Reported LD50
- 1,780 mg/kg · low toxicity
- Species
- rat
- Route
- oral
An LD50 describes acute toxicity under experimental conditions and is not a safe or dangerous dose for a person.
Toxicity & hazards
Toxicity · LD50
1,780 mg/kg · low toxicity · LD50 rat oral from source
4 more reported values
- 609 mg/kgLD50 · oral · rabbit
- 2,363 mg/kgLD50 · oral · mouse
- 588 mg/kgLD50 · other · mouse
- 624 mg/kgLD50 · other · rat
DangerIrritantHealth hazardEnvironmentalH302, H315, H319, H335, H361, H372, H411, H412from source
Keep roaming
Where L-DOPA leads
Relatedcomputed
Tyrosine65% similarBoth carry a phenol, a carboxylic acid and an amine group.Phenylalanine58% similarBoth carry a carboxylic acid and an amine group.Triiodothyronine50% similarBoth carry a phenol, a carboxylic acid and an amine group.Dopamine45% similarBoth carry a phenol and an amine group.Levothyroxine43% similarBoth carry a phenol, a carboxylic acid and an amine group.Thyroxine43% similarBoth carry a phenol, a carboxylic acid and an amine group.