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SML2938

Sigma-Aldrich

Vernakalant hydrochloride

≥98% (HPLC)

Synonym(s):

(3R)-1-((1R,2R)-2-(2-(3,4-Dimethoxyphenyl)ethoxy)cyclohexyl)pyrrolidin-3-ol hydrochloride, (3R)-1-[(1R,2R)-2-[2-(3,4-Dimethoxyphenyl)ethoxy]cyclohexyl]-3-pyrrolidinol hydrochloride, RSD 1235, RSD-1235, RSD1235

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About This Item

Empirical Formula (Hill Notation):
C20H31NO4 · HCl
CAS Number:
748810-28-8
Molecular Weight:
385.93
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

−20°C

InChI

1S/C20H31NO4.ClH/c1-23-19-8-7-15(13-20(19)24-2)10-12-25-18-6-4-3-5-17(18)21-11-9-16(22)14-21;/h7-8,13,16-18,22H,3-6,9-12,14H2,1-2H3;1H/t16-,17-,18-;/m1./s1

InChI key

JMHYCBFEEFHTMK-IIUXMCBISA-N

Biochem/physiol Actions

Vernakalant is a multiple ion channel blocker that exerts in vivo anti-fibrillatory (anti-arrhythmic) efficacy (ED50 = 1.5 μmol/kg/min iv. against ischemia-induced arrhythmias in rats) via atrial-selective Kv1.5 blockage (hKv1.5/rKv4.2/rKv4.3 IC50 = 13/38/30 μM at 1Hz & -80 to 60 mV in 200 (Kv1.5) or 400 (Kv4) msec) as well as potential- and rate-dependent Nav1.5 blockade (inward Na current INa IC50 = 9 μM/20 Hz & -80 mV, 31 μM/1Hz & -60 mV, 107 μM/1Hz & -120 mV using HEK hNav1.5 cells).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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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Peter M R Orth et al.
Cardiovascular research, 70(3), 486-496 (2006-03-21)
RSD1235 is a novel antiarrhythmic drug with atria-selective electrophysiological actions on Na(+) and K(+) currents. The mechanism for its protection of ventricular repolarization was assessed by its action on Purkinje fibers, and by block of late sodium current active during
Toshiki Chiba et al.
Journal of pharmacological sciences, 130(3), 170-176 (2016-04-02)
Electrical remodeling plays a pivotal role in maintaining the reentry during atrial fibrillation. In this study, we assessed influence of electrical remodeling on pharmacological manipulation of the atrial refractoriness in rabbits. We used an atrial electrical remodeling model of the
Gerrit Frommeyer et al.
Journal of cardiovascular medicine (Hagerstown, Md.), 18(9), 663-668 (2017-07-12)
Current guidelines recommend vernakalant for pharmacologic cardioversion of recent-onset atrial fibrillation. However, this drug is not established as chronic therapy. In total, 15 rabbit hearts were Langendorff-perfused. A burst pacing protocol-induced atrial fibrillation in 7 of 15 hearts at baseline
Arne van Hunnik et al.
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 20(1), 140-148 (2017-04-28)
Besides the inhibition of the sodium inward current, vernakalant also inhibits the ultra rapid rectifier (IKur) and transient outward current (Ito). Inhibition of these currents increases contractility in canine atrial myocytes and goat atria. We investigated the effect of vernakalant
David Fedida et al.
Journal of cardiovascular electrophysiology, 16(11), 1227-1238 (2005-11-24)
RSD1235 is a novel drug recently shown to convert AF rapidly and safely in patients.(1) Its mechanism of action has been investigated in a rat model of ischemic arrhythmia, along with changes in action potential (AP) morphology in isolated rat
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