Flecainide acetate
Based on 3 publication(s) in Google Scholar
Flecainide acetate (R-818) is a class 1C antiarrhythmic agent especially used for the management of supraventricular arrhythmia; works by blocking the Nav1.5 sodium channel in the heart, causing prolongation of the cardiac action potential.
For research use only. We do not sell to patients.
- Purity: 99.35%
- CAS No.: 54143-56-5
- Formula: C19H24F6N2O5
- Molecular Weight:474.39
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Publications Citing Use of MedChemExpress (MCE) Flecainide acetate
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Biological Activity
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Nav1.5 |
Flecainide is a class 1C antiarrhythmic drug especially used for the management of supraventricular arrhythmia. Flecainide works by blocking the Nav1.5 sodium channel in the heart, causing prolongation of the cardiac action potential. in vitro: Under the current-clamp condition, flecainide (1-100 microM) prolonged the action potential duration at both the early and the late phases of repolarization in a concentration-dependent manner without affecting the resting membrane potential [1]. At a holding potential (HP) of -120 mV, flecainide use-dependently blocked WT and G1306E I(Na) equally but was more potent on R1448C channels. For WT, the extent of block depended on a holding voltage more negative than the activation threshold, being greater at -90 mV as compared to -120 and -180 mV [2]. in vivo: Flecainide (80-130 mg/m(2) orally) resulted in termination of the tachycardia in all 8 patients. Acute pharmacological termination of arrhythmia occurred with oral flecainide loading in 1 and temporarily with intravenous esmolol loading in 1 patient. Adjuvant therapy in form of propranolol was used in 5 and digoxin in 2 [3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 54143-56-5
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Appearance Solid
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Molecular Weight 474.39
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Formula C19H24F6N2O5
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Color White to off-white
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SMILES
O=C(NCC1NCCCC1)C2=CC(OCC(F)(F)F)=CC=C2OCC(F)(F)F.CC(O)=O
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Synonyms
R-818
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (3)
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Journal Impact Factor
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Most Recent
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Stem Cell Res Ther
Immune response caused by M1 macrophages elicits atrial fibrillation-like phenotypes in coculture model with isogenic hiPSC-derived cardiomyocytes. [Abstract]2024 Sep 4;15(1):280. PMID: 39227896 -
Bioorg Med Chem
D-DARTS: an alternative method for NaV1.5 affinity molecules identification based on dual-drug affinity responsive target stability. [Abstract]2025 Oct 9:132:118436. PMID: 41086654 -
Solvent & Solubility
DMSO : 50 mg/mL (105.40 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 20 mg/mL (42.16 mM; Need ultrasonic)
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 (sealed storage, away from moisture). 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 (sealed storage, away from moisture). 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.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (5.27 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (5.27 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Purity & Documentation
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Data Sheet (275 KB)
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SDS (419 KB)
- English - EN (419 KB)
- Français - FR (419 KB)
- Deutsch - DE (419 KB)
- Norwegian - NO (419 KB)
- Español - ES (419 KB)
- Swedish - SV (419 KB)
- Italian - IT (419 KB)
- Korean - KR (419 KB)
- Portuguese - PT (419 KB)
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Handling Instructions (2659 KB)
References
[1]. Yamashita T, Nakajima T, Hamada E, Flecainide inhibits the transient outward current in atrial myocytes isolated from the rabbit heart. J Pharmacol Exp Ther. 1995 Jul;274(1):315-21. [Content Brief]
[2]. Desaphy JF, De Luca A, Didonna MP, Different flecainide sensitivity of hNav1.4 channels and myotonic mutants explained by state-dependent block. J Physiol. 2004 Jan 15;554(Pt 2):321-34. [Content Brief]
[3]. Kohli V. Oral flecainide is effective in management of refractory tachycardia in infants. Indian Heart J. 2013 Mar-Apr;65(2):168-71. [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 (sealed storage, away from moisture). 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 / DMSO | 1 mM | 2.1080 mL | 10.5399 mL | 21.0797 mL | 52.6993 mL |
| 5 mM | 0.4216 mL | 2.1080 mL | 4.2159 mL | 10.5399 mL | |
| 10 mM | 0.2108 mL | 1.0540 mL | 2.1080 mL | 5.2699 mL | |
| 15 mM | 0.1405 mL | 0.7027 mL | 1.4053 mL | 3.5133 mL | |
| 20 mM | 0.1054 mL | 0.5270 mL | 1.0540 mL | 2.6350 mL | |
| 25 mM | 0.0843 mL | 0.4216 mL | 0.8432 mL | 2.1080 mL | |
| 30 mM | 0.0703 mL | 0.3513 mL | 0.7027 mL | 1.7566 mL | |
| 40 mM | 0.0527 mL | 0.2635 mL | 0.5270 mL | 1.3175 mL | |
| DMSO | 50 mM | 0.0422 mL | 0.2108 mL | 0.4216 mL | 1.0540 mL |
| 60 mM | 0.0351 mL | 0.1757 mL | 0.3513 mL | 0.8783 mL | |
| 80 mM | 0.0263 mL | 0.1317 mL | 0.2635 mL | 0.6587 mL | |
| 100 mM | 0.0211 mL | 0.1054 mL | 0.2108 mL | 0.5270 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.
Flecainide acetate Related Classifications
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