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Merck

D9628

3,4-Dihydroxy-L-phenylalanine

≥98% (TLC)

Synonym(s):

3-(3,4-Dihydroxyphenyl)-L-alanine, L-3-Hydroxytyrosine, L-DOPA, Levodopa

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About This Item

Linear Formula:
(HO)2C6H3CH2CH(NH2)CO2H
CAS Number:
59-92-7
Molecular Weight:
197.19
NACRES:
NA.32
PubChem Substance ID:
24277914
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-445-2
MDL number:
MFCD00002598
Beilstein/REAXYS Number:
2215169

Key Documents

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Product Name

3,4-Dihydroxy-L-phenylalanine, ≥98% (TLC)

InChI

1S/C9H11NO4/c10-6(9(13)14)3-5-1-2-7(11)8(12)4-5/h1-2,4,6,11-12H,3,10H2,(H,13,14)/t6-/m0/s1

SMILES string

N[C@@H](Cc1ccc(O)c(O)c1)C(O)=O

InChI key

WTDRDQBEARUVNC-LURJTMIESA-N

assay

≥98% (TLC)

form

powder

color

white to off-white

mp

276-278 °C (lit.)

application(s)

peptide synthesis

storage temp.

room temp

Quality Level

200

Gene Information

human ... DRD1(1812), DRD2(1813), DRD3(1814), DRD4(1815), DRD5(1816)
mouse ... DRD1(13488), DRD2(13489), DRD3(13490), DRD4(13491), DRD5(13492)
rat ... DRD1(24316), DRD2(24318), DRD3(29238), DRD4(25432), DRD5(25195)

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Application

3,4-Dihydroxy-L-phenylalanine or L-DOPA has been used to stain melanocytes. It has also been used to study its effects on a Drosophila model of Parkinson′s disease.

Biochem/physiol Actions

3,4-Dihydroxy-L-phenylalanine or L-DOPA is a natural isomer of the immediate precursor of dopamine that crosses the blood-brain barrier. It is used for the treatment of Parkinson′s disease and is a product of tyrosine hydroxylase.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

D9628-500MG: + D9628-1G: + D9628-25G: + D9628-BULK: + D9628-5G: + D9628-250MG: + D9628-100G: + D9628-500G: + D9628-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
SLCJ8766
SLCH1810
SLCD9448
SLCD1536
SLCB0627

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Alan J. Sinclair, John E. Morley, Bruno Vellas
Pathy's Principles and Practice of Geriatric Medicine (2012)
Primary culture of human face skin melanocytes for the study of hyperpigmentation
Cytotechnology, 66(6) (2014)
Effects of small-molecule amyloid modulators on a Drosophila model of Parkinson?s disease
Malgorzata Pokrzywa
PLoS ONE (2017)
Kate Thomson et al.
Scientific reports, 9(1), 18345-18345 (2019-12-05)
Animal models have demonstrated a link between dysregulation of the retinal dopamine system and the excessive ocular growth associated with the development of myopia. Here we show that intravitreal or topical application of levodopa, which is widely used in the
Molly J Crockett et al.
Current biology : CB, 25(14), 1852-1859 (2015-07-07)
An aversion to harming others is a core component of human morality and is disturbed in antisocial behavior. Deficient harm aversion may underlie instrumental and reactive aggression, which both feature in psychopathy. Past work has highlighted monoaminergic influences on aggression
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