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PZ0016

Sigma-Aldrich

Dofetilide

≥98% (HPLC), powder, hERG channel blocker

Synonym(s):

N-[4-[2-[Methyl[2-[4-[(methylsulfonyl)amino]phenoxy]ethyl]amino]ethyl]phenyl]methanesulfonamide, UK-68798

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About This Item

Empirical Formula (Hill Notation):
C19H27N3O5S2
CAS Number:
115256-11-6
Molecular Weight:
441.56
MDL number:
MFCD00869707
UNSPSC Code:
12352200
PubChem Substance ID:
329823685
NACRES:
NA.77

product name

Dofetilide, ≥98% (HPLC)

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to off-white

solubility

DMSO: >20 mg/mL

storage temp.

room temp

SMILES string

CN(CCOc1ccc(NS(C)(=O)=O)cc1)CCc2ccc(NS(C)(=O)=O)cc2

InChI

1S/C19H27N3O5S2/c1-22(13-12-16-4-6-17(7-5-16)20-28(2,23)24)14-15-27-19-10-8-18(9-11-19)21-29(3,25)26/h4-11,20-21H,12-15H2,1-3H3

InChI key

IXTMWRCNAAVVAI-UHFFFAOYSA-N

Gene Information

human ... KCNH2(3757)

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Biochem/physiol Actions

Dofetilide is a Class III antiarrhythmic and hERG channel blocker. Dofetilide selectively blocks the rapid component of the delayed rectifier outward potassium current (IKr).

Features and Benefits

This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Health hazardEnvironment
GHS08,GHS09

Signal Word

Danger

Hazard Statements

H360,H373,H411

Hazard Classifications

Aquatic Chronic 2 - Repr. 1B - STOT RE 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Zhiyi Yu et al.
Toxicology and applied pharmacology, 274(1), 78-86 (2013-11-10)
Drugs that block the cardiac K(+) channel encoded by the human ether-à-go-go gene (hERG) have been associated with QT interval prolongation leading to proarrhythmia, and in some cases, sudden cardiac death. Because of special structural features of the hERG K(+)
C Torp-Pedersen et al.
Expert opinion on investigational drugs, 9(11), 2695-2704 (2000-11-04)
Dofetilide is a class III anti-arrhythmic drug that has been approved for the treatment of atrial fibrillation. Two clinical studies, which enrolled 996 patients, demonstrated pharmacological conversion to sinus rhythm to occur in 30% of patients. Following pharmacological or electrical
João F S Carvalho et al.
Journal of medicinal chemistry, 56(7), 2828-2840 (2013-03-12)
Drug-induced blockade of the human ether-a-go-go-related gene K(+) channel (hERG) represents one of the major antitarget concerns in pharmaceutical industry. SAR studies of this ion channel have shed light on the structural requirements for hERG interaction but most importantly may
Oleg E Osadchii
Cardiovascular drugs and therapy, 26(6), 489-500 (2012-08-25)
Dofetilide is class III antiarrhythmic agent which prolongs cardiac action potential duration because of selective inhibition of I (Kr), the rapid component of the delayed rectifier K(+) current. Although clinical studies reported on proarrhythmic risk associated with dofetilide treatment, the
R Al-Dashti et al.
The Canadian journal of cardiology, 17(1), 63-67 (2001-02-15)
Dofetilide is a new, pure class III antiarrhythmic agent that prolongs the refractory period and action potential duration without having beta-blocking or calcium channel-blocking properties, making it unique among established class III agents. Dofetilide is effective in converting atrial and
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