Levomefolic acid
Based on 3 publication(s) in Google Scholar
Levomefolic acid (L-5-MTHF) is an orally active, brain-penetrant natural active form of folic acid and is one of the most widely used folic acid food supplements.
For research use only. We do not sell to patients.
- Purity: 98.55%
- CAS No.: 31690-09-2
- Formula: C20H25N7O6
- Molecular Weight:459.46
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
Publications Citing Use of MedChemExpress (MCE) Levomefolic acid
MoreAll Endogenous Metabolite Isoforms
MoreAll DNA/RNA Synthesis Isoforms
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Biological Activity
Levomefolic acid (L-5-MTHF) shows interaction with residues Glu406, Ile 418, Lys417 and Tyr453, of which Lys 417 and Tyr 453 play a strong physiological role in the interaction between S1 and ACE and may act as a potential inhibitor of the S1:ACE2 interaction of the SARS-CoV-2 virus[1].
Levomefolic acid (L-5-MTHF) (50 nM, 72 h) increases intracellular folate metabolite activity by 7-fold better than folic acid by 2-fold in human lymphoblastoid cell line (LCL), and is a good folic acid supplement[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 31690-09-2
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Appearance Solid
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Molecular Weight 459.46
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Formula C20H25N7O6
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SMILES
O=C(O)CC[C@@H](C(O)=O)NC(C1=CC=C(NC[C@@H]2N(C)C3=C(NC(N)=NC3=O)NC2)C=C1)=O
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Synonyms
L-5-MTHF
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (3)
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Journal Impact Factor
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Most Recent
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Oncogene
The protection of UCK2 protein stability by GART maintains pyrimidine salvage synthesis for HCC growth under glucose limitation. [Abstract]2025 May;44(16):1078-1092. PMID: 39865175 -
J Mol Med (Berl)
2019 Aug;97(8):1183-1193. PMID: 31201471 -
Naunyn Schmiedebergs Arch Pharmacol
Valproic acid-induced placental toxicity: mechanistic insights and the therapeutic potential of bioactive folates. [Abstract]2025 Nov 18. PMID: 41251752
Solvent & Solubility
DMSO : 5 mg/mL (10.88 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 2.08 mg/mL (4.53 mM; ultrasonic and warming and heat to 60°C)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* 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.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (271 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Manisha Prajapat, et al. Virtual screening and molecular dynamics study of approved drugs as inhibitors of spike protein S1 domain and ACE2 interaction in SARS-CoV-2. J Mol Graph Model. 2020 Dec;101:107716. [Content Brief]
[2]. Maša Vidmar Golja, et al. Simultaneous quantification of intracellular concentrations of clinically important metabolites of folate-homocysteine cycle by LC-MS/MS. Anal Biochem. 2020 Sep 15;605:113830. [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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 2.1765 mL | 10.8823 mL | 21.7647 mL | 54.4117 mL |
| DMSO | 5 mM | 0.4353 mL | 2.1765 mL | 4.3529 mL | 10.8823 mL |
| 10 mM | 0.2176 mL | 1.0882 mL | 2.1765 mL | 5.4412 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.