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Cat.No. 5315 - Rostafuroxin | C23H34O4 | CAS No. 156722-18-8
Description: Na+/K+ ATPase modulator; antihypertensive agent
Alternative Names: PST 2238
Chemical Name: 3β,5β,14β)-21,23-Epoxy-24-norchola-20,22-diene-3,14,17-triol
Purity: ≥98% (HPLC)

Biological Activity

Na+/K+ ATPase modulator. Normalizes renal Na+/K+ ATPase pump function in mutant adducin- and endogenous ouabain-dependent forms of hypertension. Reduces blood pressure in Milan hypersensitive rats. Controls mania-like behaviors in Myshkin mice having a Na+/K+ ATPase α3 subunit mutation.

Compound Libraries

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Technical Data

M. Wt 374.51
Formula C23H34O4
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 156722-18-8
PubChem ID 153976
Smiles O[C@]4(C5=COC=C5)CC[C@]3(O)[C@]2([H])CC[C@]1([H])C[C@@H](O)CC[C@@](C)1[C@]([H])2CC[C@@]34C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 37.45 100
ethanol 37.45 100

Preparing Stock Solutions

The following data is based on the product molecular weight 374.51. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.67 mL 13.35 mL 26.7 mL
5 mM 0.53 mL 2.67 mL 5.34 mL
10 mM 0.27 mL 1.34 mL 2.67 mL
50 mM 0.05 mL 0.27 mL 0.53 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Ferrari (2006) Rostafuroxin: an ouabain antagonist that corrects renal and vascular Na+-K+- ATPase alterations in ouabain and adducin-dependent hypertension. Am.J.Physiol.Regul.Integr.Comp.Physiol. 290 529 PMID: 16467500

Kirshenbaum et al (2011) Mania-like behavior induced by genetic dysfunction of the neuron-specific Na+,K+-ATPase α3 sodium pump. Proc.Natl.Acad.Sci.U.S.A. 108 18144 PMID: 22025725

Ferrari et al (2010) Rostafuroxin: an ouabain-inhibitor counteracting specific forms of hypertension. Biochim Biophys Acta. 1802 1254 PMID: 20083196

If you know of a relevant reference for Rostafuroxin, please let us know.

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Keywords: PST2238 Ouabain inhibitors inhibits Na+/K+ ATPase pump modulators antihypertensive PST 2238 Na+/K+ ATPase

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Literature in this Area


Cardiovascular Research Product Guide

A collection of over 250 products for cardiovascular research, the guide includes research tools for the study of:

  • Hypertension
  • Thrombosis and Hemostasis
  • Atherosclerosis
  • Myocardial Infarction
  • Ischemia/Reperfusion Injury
  • Arrhythmias
  • Heart Failure

Cardiovascular Poster

Cardiovascular disease remains one of the major causes of morbidity and mortality in the Western world and therefore this therapeutic area continues to be of great interest to researchers. This poster highlights the key GPCRs regulating vascular reactivity.

Pathways for Rostafuroxin


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