WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 531769

CAS#: 113558-89-7

Description: E4031 selectively blocks hERG K+ channels. E4031 inhibits the rapid delayed-rectifier K+ current (IKr) and reversibly prolongs action potential duration in guinea pig papillary muscle and isolated ventricular myocytes, without affecting Na+ or Ca2+ inward currents. E4031 is a class III antiarrhythmic agent.

Price and Availability




E4031 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 531769
Name: E4031
CAS#: 113558-89-7
Chemical Formula: C21H27N3O3S
Exact Mass: 401.1773
Molecular Weight: 401.53
Elemental Analysis: C, 62.82; H, 6.78; N, 10.47; O, 11.95; S, 7.98

Related CAS #: 113558-89-7 (Free Base); 113559-13-0 (Dihydrochloride)  

Synonym: E4031; E-4031; E 4031.

IUPAC/Chemical Name: N-[4-[1-[2-(6-methylpyridin-2-yl)ethyl]piperidine-4-carbonyl]phenyl]methanesulfonamide


InChi Code: InChI=1S/C21H27N3O3S/c1-16-4-3-5-19(22-16)12-15-24-13-10-18(11-14-24)21(25)17-6-8-20(9-7-17)23-28(2,26)27/h3-9,18,23H,10-15H2,1-2H3


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:


1: Chan AP, Leung MW, So PP, Guppy LJ, Walker MJ. Effects of E4031 and quinidine on atrial and ventricular refractoriness in rabbits in vivo. Proc West Pharmacol Soc. 2004;47:39-41. PubMed PMID: 15633608.

2: Webster R, Allan G, Anto-Awuakye K, Harrison A, Kidd T, Leishman D, Phipps J, Walker D. Pharmacokinetic/pharmacodynamic assessment of the effects of E4031, cisapride, terfenadine and terodiline on monophasic action potential duration in dog. Xenobiotica. 2001 Aug-Sep;31(8-9):633-50. PubMed PMID: 11569530.

3: Shiroshita-Takeshita A, Mitamura H, Sato T, Shinagawa K, Kurita Y, Kanki H, Takatsuki S, Hara M, Ogawa S. Preserved effects of potassium channel blockers in the pacing-induced remodeled canine atrium: a comparison between E4031 and azimilide. J Cardiovasc Pharmacol. 2003 May;41(5):678-85. PubMed PMID: 12717097.