1. Anti-infection
  2. SARS-CoV HBV
  3. Punicalagin

Punicalagin is a polyphenol ingredient isolated from Pomegranate (Punica granatum L.) or the leaves of Terminalia catappa L.. Punicalagin is a reversible and non-competitive 3CLpro inhibitor and inhibits SARS-CoV-2 replication in vitro. Punicalagin is an anti-hepatitis B virus (HBV) agent and has antioxidant, anti-inflammatory, and anticancer effects. Punicalagin has the potential for the research of COVID-19.

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

Punicalagin Chemical Structure

Punicalagin Chemical Structure

CAS No. : 65995-63-3

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Customer Review

Based on 5 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Punicalagin is a polyphenol ingredient isolated from Pomegranate (Punica granatum L.) or the leaves of Terminalia catappa L.. Punicalagin is a reversible and non-competitive 3CLpro inhibitor and inhibits SARS-CoV-2 replication in vitro. Punicalagin is an anti-hepatitis B virus (HBV) agent and has antioxidant, anti-inflammatory, and anticancer effects. Punicalagin has the potential for the research of COVID-19[1][2][3].

In Vitro

Punicalagin (100 mg/ml) induces apoptosis in HT-29, HCT116 colon cells[1].
Punicalagin slightly inhibits the PLpro activity with an IC50 of over 50 μM. Punicalagin inhibits the plaque formation of SARS-CoV-2 in a dose-dependent manner, with EC50 values of 7.20 μM[4].
Punicalagin binds at an allosteric site in the dimer interface. Punicalagin inhibit SARS-CoV-2 replication by a mechanism other than preventing S-mediated viral entry[4].

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

In Vivo

Punicalagin (10 mg/kg) inhibits the edema rate of 58.15% in rats[2].

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

Clinical Trial
Molecular Weight

1084.72

Formula

C48H28O30

CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C1C2=C(C3=C(O)C(O)=C2C4=C(O)C(O)=C(O)C=C4C(OC(C(OC5=O)C(C=O)OC(C6=C(C7=C5C=C(O)C(O)=C7O)C(O)=C(O)C(O)=C6)=O)C8O)=O)C9=C(C(O3)=O)C(C(C(O)=C(O)C(O)=C%10)=C%10C(OC8)=O)=C(O)C(O)=C9O1

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (92.19 mM; Need ultrasonic)

DMSO : 50 mg/mL (46.09 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 0.9219 mL 4.6095 mL 9.2190 mL
5 mM 0.1844 mL 0.9219 mL 1.8438 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 (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • 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: ≥ 2.17 mg/mL (2.00 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.17 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (21.7 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: ≥ 2.17 mg/mL (2.00 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.17 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (21.7 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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
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 (protect from 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 / H2O 1 mM 0.9219 mL 4.6095 mL 9.2190 mL 23.0474 mL
5 mM 0.1844 mL 0.9219 mL 1.8438 mL 4.6095 mL
10 mM 0.0922 mL 0.4609 mL 0.9219 mL 2.3047 mL
15 mM 0.0615 mL 0.3073 mL 0.6146 mL 1.5365 mL
20 mM 0.0461 mL 0.2305 mL 0.4609 mL 1.1524 mL
25 mM 0.0369 mL 0.1844 mL 0.3688 mL 0.9219 mL
30 mM 0.0307 mL 0.1536 mL 0.3073 mL 0.7682 mL
40 mM 0.0230 mL 0.1152 mL 0.2305 mL 0.5762 mL
H2O 50 mM 0.0184 mL 0.0922 mL 0.1844 mL 0.4609 mL
60 mM 0.0154 mL 0.0768 mL 0.1536 mL 0.3841 mL
80 mM 0.0115 mL 0.0576 mL 0.1152 mL 0.2881 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Punicalagin 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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