1. GPCR/G Protein Neuronal Signaling
  2. Cholecystokinin Receptor
  3. Pentagastrin

Pentagastrin  (Synonyms: ICI-50123)

Cat. No.: HY-A0261 Purity: 98.06%
COA Handling Instructions

Pentagastrin (ICI-50123) is a potent, selective Cholecystokinin B (CCKB) receptor antagonists with IC50 values of 11 nM and 1100 nM for CCKB and CCKA, respectively. Pentagastrin enhances gastric mucosal defense mechanisms against acid and protects the gastric mucosa from experimental injury..

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

Custom Peptide Synthesis

Pentagastrin Chemical Structure

Pentagastrin Chemical Structure

CAS No. : 5534-95-2

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 81 In-stock
Solution
10 mM * 1 mL in DMSO USD 81 In-stock
Solid
5 mg USD 60 In-stock
10 mg USD 96 In-stock
25 mg USD 180 In-stock
50 mg USD 300 In-stock
100 mg USD 432 In-stock
200 mg   Get quote  
500 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Pentagastrin:

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Pentagastrin

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Pentagastrin (ICI-50123) is a potent, selective Cholecystokinin B (CCKB) receptor antagonists with IC50 values of 11 nM and 1100 nM for CCKB and CCKA, respectively. Pentagastrin enhances gastric mucosal defense mechanisms against acid and protects the gastric mucosa from experimental injury[1].[2].

IC50 & Target

CCKBR

 

In Vitro

Pentagastrin (ICI-50123) (0.1-100 μM; GH3-cells) increases intracellular Ca2+ in a dose-dependent manner with a maximal increase of 2.77-fold[1].
Pentagastrin (ICI-50123) (0.1-100 μM; GH3-cells) bounds dose dependently to GH3 cells[1].

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

In Vivo

Pentagastrin (ICI-50123) (80 µg/kg/h; i.v.; male Sprague-Dawley rats) protects rat gastric mucosa from acidified aspirin injury[2].

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

Animal Model: Male Sprague-Dawley rats (approximately 200 g)[2]
Dosage: 80 µg/kg/h
Administration: Intravenous injection
Result: Protected rat gastric mucosa from acidified aspirin injury. Induced a hyperaemic response to luminal acid challenge, increased mucus gel thickness, and elevated pHi during acid challenge.
Clinical Trial
Molecular Weight

767.89

Formula

C37H49N7O9S

CAS No.
Appearance

Solid

Color

White to off-white

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture and light

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 34 mg/mL (44.28 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.3023 mL 6.5113 mL 13.0227 mL
5 mM 0.2605 mL 1.3023 mL 2.6045 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 (sealed storage, away from moisture and light). 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: ≥ 2.08 mg/mL (2.71 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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% Corn Oil

    Solubility: ≥ 2.08 mg/mL (2.71 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

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).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

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: 99.97%

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 (sealed storage, away from moisture and light). 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 1.3023 mL 6.5113 mL 13.0227 mL 32.5567 mL
5 mM 0.2605 mL 1.3023 mL 2.6045 mL 6.5113 mL
10 mM 0.1302 mL 0.6511 mL 1.3023 mL 3.2557 mL
15 mM 0.0868 mL 0.4341 mL 0.8682 mL 2.1704 mL
20 mM 0.0651 mL 0.3256 mL 0.6511 mL 1.6278 mL
25 mM 0.0521 mL 0.2605 mL 0.5209 mL 1.3023 mL
30 mM 0.0434 mL 0.2170 mL 0.4341 mL 1.0852 mL
40 mM 0.0326 mL 0.1628 mL 0.3256 mL 0.8139 mL
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Pentagastrin 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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Pentagastrin
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