1. Membrane Transporter/Ion Channel
  2. Na+/K+ ATPase
  3. Rostafuroxin

Rostafuroxin (Synonyms: PST 2238)

Cat. No.: HY-12283 Purity: 96.70%
Handling Instructions

Rostafuroxin(PST 2238) is a antihypertensive compound; Na,K-ATPase antognist;displaced [3H]ouabain from the dogkidney Na+,K+-ATPase with IC50 of 1.5 nM.

For research use only. We do not sell to patients.

Rostafuroxin Chemical Structure

Rostafuroxin Chemical Structure

CAS No. : 156722-18-8

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 178 In-stock
Estimated Time of Arrival: December 31
10 mg USD 162 In-stock
Estimated Time of Arrival: December 31
50 mg USD 702 In-stock
Estimated Time of Arrival: December 31
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Description

Rostafuroxin(PST 2238) is a antihypertensive compound; Na,K-ATPase antognist;displaced [3H]ouabain from the dogkidney Na+,K+-ATPase with IC50 of 1.5 nM. IC50 value: 1.5 nM [1] Target: Na+,K+-ATPase modulator; ouabain antagonist in vitro: PST 2238 displaced [3H]ouabain from the dog kidney Na+,K+-ATPase receptor (IC50 ) 1.5X 10-6M), was devoid of cardiac inotropic activity in isolated guinea pig atria, and showed no affinity up to 10-4 M with general (R1, R2, a1, a2, A1, A2, M1, M2, H1, H2, 5-HT1, 5-HT2, Ca2+ channels, TXA2/PGH2, PAF, GABAA, GABAB, DA-NE-5-HT uptake, glutammate,glycine, benzodiazepine) and hormonal (estrogenic, progestinic, androgenic, mineralcorticoid) receptors [1]. At molecular level, in the kidney, Rostafuroxin antagonizes EO triggering of the Src-epidermal growth factor receptor (EGFr)-dependent signaling pathway leading to renal Na+-K+ pump, and ERK tyrosine phosphorylation and activation [3]. in vivo: PST 2238, given orally at very low doses (1 and 10 microg/kg for 5-6 weeks), reduced the development of hypertension in MHS rats and normalized the increased renal Na,K-ATPase activity and mRNA levels, whereas it did not affect either blood pressure or Na,K-ATPase in Milan-normotensive (MNS) rats [2].

Clinical Trial
Molecular Weight

374.51

Formula

C₂₃H₃₄O₄

CAS No.

156722-18-8

SMILES
Shipping

Room temperature in continental US; may vary elsewhere

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 50 mg/mL (133.51 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6702 mL 13.3508 mL 26.7016 mL
5 mM 0.5340 mL 2.6702 mL 5.3403 mL
10 mM 0.2670 mL 1.3351 mL 2.6702 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (6.68 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (6.68 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (6.68 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
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Rostafuroxin
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HY-12283
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