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ChemicalBook >> CAS DataBase List >> Levodopa

Levodopa

Levodopa price.
  • $7 - $3326.4
  • Product name: Levodopa
  • CAS: 59-92-7
  • MF: C9H11NO4
  • MW: 197.19
  • EINECS:200-445-2
  • MDL Number:MFCD00002598
  • Synonyms:3,4-Dihydroxyphenyl-L-alanine;3,4-L-DIHYDROXYPHENYLALANINE;BETA-(3,4-DIHYDROXYPHENYL)-L-ALANINE;HYDROXYTYROSINE;H-PHE(3,4-DI-HYDROXY)-OH;H-PHE(3,4-DI-OH)-OH;H-TYR(3-HYDROXY)-OH;L-BETA-(3,4-DIHYDROXYPHENYL)ALANINE
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging500g
  • Price$70
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging100g
  • Price$23
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging50g
  • Price$16
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging25g
  • Price$10
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging10g
  • Price$9
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging5g
  • Price$7
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0036Y3
  • Product description3-(3,4-Dihydroxyphenyl)-L-alanine 98%
  • Packaging250g
  • Price$39
  • Updated2026-05-28
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  • ManufacturerActivate Scientific
  • Product numberAS92658
  • Product description3,4-Dihydroxy-L-phenylalanine 95+%
  • Packaging25g
  • Price$25
  • Updated2021-12-16
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  • ManufacturerActivate Scientific
  • Product numberAS92658
  • Product description3,4-Dihydroxy-L-phenylalanine 95+%
  • Packaging100g
  • Price$56
  • Updated2021-12-16
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  • ManufacturerAdipogen Life Sciences
  • Product numberCDX-D0465-G025
  • Product description3,4-Dihydroxy-L-phenylalanine ≥98%
  • Packaging25g
  • Price$71
  • Updated2021-12-16
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  • ManufacturerAdipogen Life Sciences
  • Product numberCDX-D0465-G025
  • Product description3,4-Dihydroxy-L-phenylalanine ≥98%
  • Packaging25g
  • Price$79
  • Updated2026-05-06
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  • ManufacturerAdipogen Life Sciences
  • Product numberCDX-D0465-G100
  • Product description3,4-Dihydroxy-L-phenylalanine ≥98%
  • Packaging100g
  • Price$212
  • Updated2021-12-16
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  • ManufacturerAdipogen Life Sciences
  • Product numberCDX-D0465-G100
  • Product description3,4-Dihydroxy-L-phenylalanine ≥98%
  • Packaging100g
  • Price$236
  • Updated2026-05-06
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  • ManufacturerAHH
  • Product numberMT-53193
  • Product descriptionLevodopa 97%
  • Packaging250g
  • Price$325
  • Updated2026-05-25
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  • ManufacturerAHH
  • Product numberMT-53193
  • Product descriptionLevodopa 97%
  • Packaging250g
  • Price$325
  • Updated2026-05-26
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  • ManufacturerAK Scientific
  • Product numberJ90768
  • Product descriptionL-3,4-Dihydrophenylalanine
  • Packaging25g
  • Price$20
  • Updated2021-12-16
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Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 500g $70 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 100g $23 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 50g $16 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 25g $10 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 10g $9 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 5g $7 2026-05-28 Buy
aablocks AA0036Y3 3-(3,4-Dihydroxyphenyl)-L-alanine 98% 250g $39 2026-05-28 Buy
Activate Scientific AS92658 3,4-Dihydroxy-L-phenylalanine 95+% 25g $25 2021-12-16 Buy
Activate Scientific AS92658 3,4-Dihydroxy-L-phenylalanine 95+% 100g $56 2021-12-16 Buy
Adipogen Life Sciences CDX-D0465-G025 3,4-Dihydroxy-L-phenylalanine ≥98% 25g $71 2021-12-16 Buy
Adipogen Life Sciences CDX-D0465-G025 3,4-Dihydroxy-L-phenylalanine ≥98% 25g $79 2026-05-06 Buy
Adipogen Life Sciences CDX-D0465-G100 3,4-Dihydroxy-L-phenylalanine ≥98% 100g $212 2021-12-16 Buy
Adipogen Life Sciences CDX-D0465-G100 3,4-Dihydroxy-L-phenylalanine ≥98% 100g $236 2026-05-06 Buy
AHH MT-53193 Levodopa 97% 250g $325 2026-05-25 Buy
AHH MT-53193 Levodopa 97% 250g $325 2026-05-26 Buy
AK Scientific J90768 L-3,4-Dihydrophenylalanine 25g $20 2021-12-16 Buy

Properties

Melting point :276-278 °C (lit.)
Boiling point :334.28°C (rough estimate)
alpha :-11.7 º (c=5.3, 1N HCl)
Density :1.3075 (rough estimate)
refractive index :-12 ° (C=5, 1mol/L HCl)
storage temp. :2-8°C
solubility :Slightly soluble in water, practically insoluble in ethanol (96 per cent). It is freely soluble in 1 M hydrochloric acid and sparingly soluble in 0.1 M hydrochloric acid .
pka :2.32(at 25℃)
form :Crystalline Powder
color :White to creamy
Odor :at 100.00 %. odorless
Odor Type :odorless
optical activity :-39.5 (H2O) -12.025 (1 mol dm-3 HCl)
Water Solubility :Slightly soluble in water, dilute hydrochloric acid and formic acid. Insoluble in ethanol.
Merck :14,5464
BRN :2215169
Stability :Stable. Incompatible with strong oxidizing agents. Light and air sensitive.
Major Application :peptide synthesis
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
InChIKey :WTDRDQBEARUVNC-LURJTMIESA-N
SMILES :N[C@@H](Cc1ccc(O)c(O)c1)C(O)=O
LogP :-1.154 (est)
CAS DataBase Reference :59-92-7(CAS DataBase Reference)
NIST Chemistry Reference :Levodopa(59-92-7)
EPA Substance Registry System :Levodopa (59-92-7)

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Dopamine is a neurotransmitter involved in synaptic plasticity, cognition, and the regulation of locomotor control. It is produced endogenously in the substantia nigra and ventral tegmental area but when administered exogenously cannot cross the blood brain barrier. L-DOPA is a metabolic precursor of dopamine that is capable of crossing the blood brain barrier. It is produced from L-tyrosine by trysosine hydroxylase and metabolized by catechol-O-methyl transferase (COMT). In the brain L-DOPA is converted to dopamine. It is conventionally used to increase dopamine concentrations in the brain as a treatment for Parkinson’s disease and stroke recovery. However L-DOPA has a short half-life and is known to elevate homocysteine concentrations in plasma, which can be neurotoxic and induce oxidative damage.

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