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FLECAINIDE ACETATE

CAS No.
54143-56-5
Chemical Name:
FLECAINIDE ACETATE
Synonyms
FLAC;Apocard;Tambocor;r-818;Ecrinal;Almarytm;Flucarney Acetate;FLECAINIDE ACETATE;Flecainide-d4 Acetate;Flecainide acetate CRS
CBNumber:
CB9295801
Molecular Formula:
C19H24F6N2O5
Molecular Weight:
474.39
MDL Number:
MFCD00214290
MOL File:
54143-56-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-16 07:06:08

FLECAINIDE ACETATE Properties

Melting point 145-147℃
storage temp. 2-8°C
solubility Soluble in water and in anhydrous ethanol. It is freely soluble in dilute acetic acid and practically insoluble in dilute hydrochloric acid.
form Solid
color White
Water Solubility Soluble in dilute acetic acid, dimethyl sulfoxide, ethanol, methanol and water.
Stability Stable for 1 year from date of purchase as supplied. Solutions in DMSO or distilled water may be stored at -20°C for up to 1 month.
Major Application pharmaceutical (small molecule)
InChIKey RKXNZRPQSOPPRN-UHFFFAOYSA-N
SMILES C1(C=C(C=CC=1OCC(F)(F)F)OCC(F)(F)F)C(=O)NCC1NCCCC1.C(=O)(O)C
EWG's Food Scores 1
FDA UNII M8U465Q1WQ
UNSPSC Code 41116107
NACRES NA.77

Pharmacokinetic data

Protein binding 32-58%
Excreted unchanged in urine 42%
Volume of distribution 8.31
Biological half-life 12-27 / 19-26

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS07,GHS08
Signal word  Danger
Hazard statements  H302-H315-H319-H335-H360FD
Precautionary statements  P201-P202-P301+P312-P302+P352-P305+P351+P338-P308+P313
target organs Respiratory system
Hazard Codes  Xn
Risk Statements  22-36/37/38-63
Safety Statements  22-26-36/37/39-45-46
RIDADR  3249
WGK Germany  -
RTECS  CV5792550
HazardClass  6.1(b)
PackingGroup  III
HS Code  2933399090
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Repr. 1B
Skin Irrit. 2
STOT SE 3
NFPA 704
0
2 0

FLECAINIDE ACETATE price More Price(66)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich Y0001274 Flecainide for system suitability European Pharmacopoeia (EP) Reference Standard 54143-56-5 10 mg $164 2026-04-30 Buy
Sigma-Aldrich F6777 Flecainide acetate salt 54143-56-5 25mg $193 2026-04-30 Buy
Sigma-Aldrich PHR2921 Flecainide Acetate pharmaceutical secondary standard, certified reference material 54143-56-5 500MG $241 2026-04-30 Buy
Sigma-Aldrich F0120000 Flecainide acetate European Pharmacopoeia (EP) Reference Standard 54143-56-5 10 mg $164 2026-04-30 Buy
Sigma-Aldrich BP676 Flecainide acetate British Pharmacopoeia (BP) Reference Standard 54143-56-5 100MG $287 2026-04-30 Buy
Product number Packaging Price Buy
Y0001274 10 mg $164 Buy
F6777 25mg $193 Buy
PHR2921 500MG $241 Buy
F0120000 10 mg $164 Buy
BP676 100MG $287 Buy

FLECAINIDE ACETATE Chemical Properties, Uses, Production

Description

Flecainide acetate (54143-56-5) is an open Na+channel blocker that inhibits fast Na+current in cardiac muscle in a use- and concentration-dependent manner.1Orally-active class Ic antiarrhythmic agent2,3. Inhibits hERG potassium channels at clinically relevant concentrations.4

Chemical Properties

White or almost white, very hygroscopic, crystalline powder.

Uses

Class I antiarrhythmic.

Uses

Flecainide acetate is used as a sodium channel blocker and as an anti-arrhythmic. In general, it is used to regulate heartbeats of the upper heart and lower heart chambers. It can also be used to slow down an overactive heart. It is also useful in the treatment of ventricular tachycardias and ventricular arrhythmias.

Definition

ChEBI: An acetate salt obtained by combining flecainide with one molar equivalent of acetic acid. An antiarrhythmic agent used to prevent and treat tachyarrhythmia (abnormal fast rhythm of the heart).

brand name

Tambocor (3M Pharmaceuticals).

General Description

Flecainide acetate, N-(2-piperidinylmethyl)-2,5-bis (2,2,2-trifluoroethoxy)benzamide monoacetate(Tambocor), is a class IC antiarrhythmic drug withlocal anesthetic activity; it is a chemical derivative of benzamide.The drug undergoes biotransformation, forming ameta-O-dealkylated compound, whose antiarrhythmic propertiesare half as potent as those of the parent drug, and ameta-O-dealkylated lactam of flecainide with little pharmacologicalactivity. Flecainide acetate is given orally to suppresschronic ventricular ectopy and ventricular tachycardia.It has some limitations because of CNS side effects.

Biological Activity

Open Na + channel blocker that inhibits fast Na + current in cardiac muscle in a use- and concentration-dependent manner. Orally-active class Ic antiarrhythmic agent.

Biochem/physiol Actions

Class IC antiarrhythmic agent; sodium channel blocker

Drug interactions

Potentially hazardous interactions with other drugs
Anti-arrhythmics: concentration increased by amiodarone - halve dose of flecainide; increased myocardial depression with other anti-arrhythmics.
Antidepressants: concentration increased by fluoxetine; increased risk of ventricular arrhythmias with tricyclics.
Antihistamines: increased risk of ventricular arrhythmias with mizolastine - avoid.
Antihypertensives: increased myocardial depression and bradycardia with beta-blockers; increased myocardial depression and asystole with verapamil.
Antimalarials: concentration increased by quinine; avoid with artemether/lumefantrine.
Antimuscarinics: increased risk of ventricular arrhythmias with tolterodine.
Antipsychotics: increased risk of ventricular arrhythmias with antipsychotics that prolong the QT interval and phenothiazines; increased risk of arrhythmias with clozapine.
Antivirals: concentration possibly increased by fosamprenavir, indinavir, lopinavir, ritonavir and saquinavir, increased risk of ventricular arrhythmias - avoid; use telaprevir with caution.
Diuretics: increased cardiac toxicity if hypokalaemia occurs.

Metabolism

Flecainide is extensively metabolised (subject to genetic polymorphism), the 2 major metabolites being m-Odealkylated flecainide and m-O-dealkylated lactam of flecainide, both of which may have some activity. Its metabolism appears to involve the cytochrome P450 isoenzyme CYP2D6, which shows genetic polymorphism.
Flecainide is excreted mainly in the urine, approximately 30% as unchanged drug and the remainder as metabolites. About 5% is excreted in the faeces. Haemodialysis removes only about 1% of unchanged flecainide.

storage

Desiccate at +4°C

References

[1] R ROUET  P D. Use- and concentration-dependent effects of flecainide in guinea pig right ventricular muscle.[J]. Journal of Cardiovascular Pharmacology, 1994, 24 2: 177-183.
[2] BRAMAH N. SINGH M.D. The Electrophysiology and Pharmacology of Verapamil, Flecainide, and Amiodarone: Correlations with Clinical Effects and Antiarrhythmic Actionsa[J]. Annals of the New York Academy of Sciences, 1984, 432 1: 210-235. DOI:10.1111/j.1749-6632.1984.tb14522.x
[3] E. H. BANITT. ANTIARRHYTHMICS. 2. SYNTHESIS AND ANTIARRHYTHMIC ACTIVITY OF N-(PIPERIDYLALKYL)TRIFLUOROETHOXYBENZAMIDES[J]. ChemInform, 1977, 38 1. DOI:10.1002/chin.197742198
[4] DARIO MELGARI . Molecular basis of hERG potassium channel blockade by the class Ic antiarrhythmic flecainide[J]. Journal of molecular and cellular cardiology, 2015, 86: Pages 42-53. DOI:10.1016/j.yjmcc.2015.06.021

FLECAINIDE ACETATE Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 247)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Pure Chemistry Scientific Inc. 001-857-928-2050 or 1-888-588-9418 sales@chemreagents.com United States 10174 62
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123 sj_scrc@sinopharm.com China 9791 79
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
MedChemexpress LLC 021-58955995 sales@medchemexpress.cn United States 4853 58
Clearsynth Labs Limited +91-22-26355700 info@clearsynth.com India 9656 58
AdooQ BioScience, LLC +1 (866) 930-6790 info@adooq.com United States 2774 58
Shanghai TaoSu Biochemical Technology Co., Ltd. 021-33632979 info@tsbiochem.com China 8039 58
Hubei XinyuanShun Chemical Co., Ltd. 13971561712, 13995564702, 027-50664929 hbeixys2001@163.com China 3110 55

View Latest Price from FLECAINIDE ACETATE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Flecainide acetate pictures 2026-07-15 Flecainide acetate
54143-56-5
$48.00-140.00 99.79% 10g TargetMol Chemicals Inc.
FLECAINIDE ACETATE pictures 2026-06-30 FLECAINIDE ACETATE
54143-56-5
1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
Flecainide acetate pictures 2025-04-04 Flecainide acetate
54143-56-5
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.

FLECAINIDE ACETATE Spectrum

2,5-bis-(2,2,2-trifluoroethoxy)-n-(2-piperidinylmethyl)benzamideacetate n-(2-piperidinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamidemonoacetate n-(2-piperidinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)-benzamidmonoacetate r-818 N-(2-PIPERIDYLMETHYL)-2,5-BIS-(2,2,2-TRIFLUOROETHOXY)BENZAMIDE ACETATE N-[2-PIPERIDYLMETHYL]-2,5-BIS-[2,2,2-TRIFLUOROETHOXY]BENZAMIDE ACETATE SALT FLECAINIDE ACETATE FLECAINIDE ACETATE SALT FLAC N-(piperidin-2-ylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide monoacetate N-[2-Pyperidinylmethyl]-2,5-bis[2,2-2-trifluoroethoxy] benzamide acetate 2,5-Bis(2,2,2-trifluoroethoxy)-N-(2-piperidylmethyl)benzamide acetate Almarytm Apocard Ecrinal Tambocor Benzamide, N-(2-piperidinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)-, monoacetate Flecainide acetate salt,N-(2-Piperidylmethyl)-2,5-bis-(2,2,2-trifluoroethoxy)benzamide acetate salt Flecainide Acetate (200 mg) Flecainide-d4 Acetate Flecainide for system suitability Flucarney Acetate N-[[(2S)-2-piperidin-1-iumyl]methyl]-2,5-bis(2,2,2-trifluoroethoxy)benzamide Flecainide acetate CRS Flecainide for system suitability CRS N-[(RS)-(Piperidin-2-ylmethyl)]-2,5-bis(2,2,2- trifluoroethoxy)benzamide acetate FLECAINIDE ACETATE USP/EP/BP Flecainide acetate (F0120000) Flecainide acetateQ: What is Flecainide acetate Q: What is the CAS Number of Flecainide acetate Q: What is the storage condition of Flecainide acetate Q: What are the applications of Flecainide acetate Flecainide for system suitability (Y0001274) Flecainide Acetate (1270800) Flecainide acetate N-(piperidin-2-ylmethyl)-2,5-bis(2,2,2- trifluoroethoxy)benzamide acetate N-(Piperidin-2-ylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide acetate Flecainide acetate, 10 mM in DMSO FLECAINIDE ACETATE USP 54143-56-5 54153-56-5 C17H20F6N2O2CH3COOH C17H20F6N2O3C2H4O2 C17H20F6N2O3C2H4O C19H24F6N2O5 BioChemical Cell Biology Cell Signaling and Neuroscience Other Sodium Channel Modulators Sodium Channel Modulators Voltage-gated Ion Channels Monovalent Ion Channels Ion Channels Organics