1. GPCR/G Protein
  2. Urotensin Receptor
  3. Palosuran

Palosuran  (Synonyms: ACT-058362)

Cat. No.: HY-10655 Purity: 99.69%
COA Handling Instructions

Palosuran (ACT-058362) is a potent, selective, and orally active antagonist of urotensin II receptor, with an IC50 of 3.6 nM for CHO cell membranes expressing human recombinant receptors. Palosuran can improves pancreatic and renal function in diabetic rats.

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

Palosuran Chemical Structure

Palosuran Chemical Structure

CAS No. : 540769-28-6

Size Price Stock Quantity
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Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 319 In-stock
Solution
10 mM * 1 mL in DMSO USD 319 In-stock
Solid
5 mg USD 290 In-stock
10 mg USD 462 In-stock
50 mg USD 1188 In-stock
100 mg USD 1848 In-stock
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Customer Review

Based on 2 publication(s) in Google Scholar

Other Forms of Palosuran:

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Palosuran (ACT-058362) is a potent, selective, and orally active antagonist of urotensin II receptor, with an IC50 of 3.6 nM for CHO cell membranes expressing human recombinant receptors. Palosuran can improves pancreatic and renal function in diabetic rats[1][2].

IC50 & Target

IC50: 3.6 nM (human urotensin II receptor)[1]

In Vitro

Palosuran (8 h) inhibits 125I-U-II binding to human UT receptor, with IC50s of 46.2 nM on TE 671 cells and 86 nM on recombinant CHO cells[1].
Palosuran inhibits Ca2+ mobilization in response to human U-II in CHO cells expressing human and rat UT receptor with IC50s of 17 and >10000 nM, respectively[1].
Palosuran (0.12-10000 nM; 20 min) inhibits human U-II induced MAPK phosphorylation in a dose-dependent manner in recombinant CHO cells, with an IC50 of 150 nM[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

ACT-058362 (10 mg/kg/h; i.v.) fully prevents the decrease in renal blood flow after ischemia in rats without decreasing blood pressure[1].
Palosuran (300 mg/kg/d; p.o. for 16 weeks) improves the survival, increases insulin, and slows the increase in glycemia, glycosylated hemoglobin, and serum lipids in streptozotocin-induced diabetic rats[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male Wistar rats with renal ischemia and reperfusion[1]
Dosage: 20 mg/kg/h for 135 min
Administration: I.v. (continuous infusion) for 135 min
Result: Restored renal blood flow to baseline values at 30 min after reperfusion and by 60 min increased renal blood flow by 12% above baseline values.
Did not significantly alter mean arterial blood pressure (MAP) and heart rate (HR).
Molecular Weight

418.53

Formula

C25H30N4O2

CAS No.
Appearance

Solid

Color

White to pink

SMILES

OC(CC1=CC=CC=C1)(CC2)CCN2CCNC(NC3=CC(C)=NC4=CC=CC=C34)=O

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 (119.47 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.3893 mL 11.9466 mL 23.8932 mL
5 mM 0.4779 mL 2.3893 mL 4.7786 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

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

    Solubility: ≥ 1.67 mg/mL (3.99 mM); Clear solution

    This protocol yields a clear solution of ≥ 1.67 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (16.7 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

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

    Solubility: 1.67 mg/mL (3.99 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 1.67 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (16.7 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.69%

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.3893 mL 11.9466 mL 23.8931 mL 59.7329 mL
5 mM 0.4779 mL 2.3893 mL 4.7786 mL 11.9466 mL
10 mM 0.2389 mL 1.1947 mL 2.3893 mL 5.9733 mL
15 mM 0.1593 mL 0.7964 mL 1.5929 mL 3.9822 mL
20 mM 0.1195 mL 0.5973 mL 1.1947 mL 2.9866 mL
25 mM 0.0956 mL 0.4779 mL 0.9557 mL 2.3893 mL
30 mM 0.0796 mL 0.3982 mL 0.7964 mL 1.9911 mL
40 mM 0.0597 mL 0.2987 mL 0.5973 mL 1.4933 mL
50 mM 0.0478 mL 0.2389 mL 0.4779 mL 1.1947 mL
60 mM 0.0398 mL 0.1991 mL 0.3982 mL 0.9955 mL
80 mM 0.0299 mL 0.1493 mL 0.2987 mL 0.7467 mL
100 mM 0.0239 mL 0.1195 mL 0.2389 mL 0.5973 mL
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Palosuran Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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