Etilevodopa
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Etilevodopa (L-Dopa ethyl ester), an ethyl-ester proagent of Levodopa, is rapidly hydrolyzed to Levodopa and ethanol by nonspecific esterases in the gastrointestinal tract. Etilevodopa is used for the treatment of Parkinson disease (PD). Levodopa is the direct precursor of dopamine and is a suitable proagent as it facilitates CNS penetration and delivers dopamine.
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- Reinheit: 99.00%
- CAS. Nr.: 37178-37-3
- Formel: C11H15NO4
- Molecular Weight:225.24
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Speicherung:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Biologische Aktivität
Etilevodopa (L-Dopa ethyl ester) passes unchanged through the stomach to the duodenum, where it is rapidly hydrolyzed by local esterases to Levodopa and ethanol, and is subsequently absorbed into the blood stream as Levodopa[1].
Compared with standard Levodopa, Etilevodopa has greater solubility in the stomach, faster passage to the small intestine, and a shortened time to maximum Levodopa concentration[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS. Nr. 37178-37-3
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Appearance Solid
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Molecular Weight 225.24
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Formel C11H15NO4
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Color White to off-white
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SMILES
N[C@H](C(OCC)=O)CC1=CC=C(C(O)=C1)O
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Synonyms
L-DOPA ethyl ester; Levodopa ethyl ester
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Versand
Room temperature in continental US; may vary elsewhere.
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Speicherung
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Lösungsmittel & Löslichkeit
H2O : 12 mg/mL (53.28 mM; Need ultrasonic and warming)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)
Reinheit & Dokumentation
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Data Sheet (271 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Korean - KR (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
Verweise
[1]. Djaldetti R, et al. Pharmacokinetics of etilevodopa compared to levodopa in patients with Parkinson's disease: an open-label, randomized, crossover study. Clin Neuropharmacol. 2003 Nov-Dec;26(6):322-6. [Content Brief]
[2]. Blindauer K, et al. A randomized controlled trial of etilevodopa in patients with Parkinson disease who have motor fluctuations. Arch Neurol. 2006 Feb;63(2):210-6. [Content Brief]
[3]. Haddad F, et al. Dopamine and Levodopa Prodrugs for the Treatment of Parkinson's Disease. Molecules. 2017 Dec 25;23(1). pii: E40. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O | 1 mM | 4.4397 mL | 22.1985 mL | 44.3971 mL | 110.9927 mL |
| 5 mM | 0.8879 mL | 4.4397 mL | 8.8794 mL | 22.1985 mL | |
| 10 mM | 0.4440 mL | 2.2199 mL | 4.4397 mL | 11.0993 mL | |
| 15 mM | 0.2960 mL | 1.4799 mL | 2.9598 mL | 7.3995 mL | |
| 20 mM | 0.2220 mL | 1.1099 mL | 2.2199 mL | 5.5496 mL | |
| 25 mM | 0.1776 mL | 0.8879 mL | 1.7759 mL | 4.4397 mL | |
| 30 mM | 0.1480 mL | 0.7400 mL | 1.4799 mL | 3.6998 mL | |
| 40 mM | 0.1110 mL | 0.5550 mL | 1.1099 mL | 2.7748 mL | |
| 50 mM | 0.0888 mL | 0.4440 mL | 0.8879 mL | 2.2199 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.