Punicalagin

Alias: Punicalagin
Cat No.:V34220 Purity: ≥98%
Punicalagin is a polyphenolic component extracted from the leaves of Punica granatum L.
Punicalagin Chemical Structure CAS No.: 65995-63-3
Product category: Natural Products
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
Other Sizes
Official Supplier of:
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Product Description
Punicalagin is a polyphenolic component extracted from the leaves of Punica granatum L. or Terminalia catappa L. Punicalagin is a reversible and noncompetitive 3CLpro inhibitor that can suppress SARS-CoV-2 replication in vitro. Punicalagin is a bioactive molecule against HBV (hepatitis B virus) and has antioxidant, anti~inflammatory and anti-cancer effects. Punicalagin may be used to be used in COVID-19 research.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
HT-29 and HCT116 homeothermic cells are induced by punicalagin (100 mg/mL) [1]. With an IC50 value greater than 50 μM, punicalagin mildly inhibits PLpro activity [4]. Punicalagin has an EC50 value of 7.20 μM and reduces SARS-CoV-2 plaque development in a dose-dependent manner [4]. Punicalagin suppresses SARS-CoV-2 replication by blocking S-mediated viral entrance into the external environment by binding at the allosteric location on the dimer surface [4].
ln Vivo
Edema is inhibited by 58.15% by punicalagin (10 mg/kg)[2].
References
[1]. Seeram NP, et al. In vitro antiproliferative, apoptotic and antioxidant activities of punicalagin, ellagicacid and a total pomegranate tannin extract are enhanced in combination with otherpolyphenols as found in pomegranate juice. J Nutr Biochem. 2005 Jun;16(6):360-7.
[2]. Lin CC, et al. Effects of punicalagin and punicalin on carrageenan-induced inflammation in rats. Am J Chin Med. 1999;27(3-4):371-6.
[3]. Liu C, et al. Identification of hydrolyzable tannins (punicalagin, punicalin and geraniin) as novel inhibitors of hepatitis B virus covalently closed circular DNA. Antiviral Res. 2016 Oct;134:97-107.
[4]. RuikunDu, et al. Discovery of Chebulagic Acid and Punicalagin as Novel Allosteric Inhibitors of SARS-CoV-2 3CLpro. Antivir Res. 2021, 105075.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C48H28O30
Molecular Weight
1084.7179
Exact Mass
1084.07
Elemental Analysis
C, 53.15; H, 2.60; O, 44.25
CAS #
65995-63-3
Appearance
Solid powder
SMILES
C1[C@@H]2[C@H]([C@H]3[C@H](C(O2)O)OC(=O)C4=CC(=C(C(=C4C5=C(C(=C(C=C5C(=O)O3)O)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6C7=C(C(=C8C9=C7C(=O)OC2=C(C(=C(C3=C(C(=C(C=C3C(=O)O1)O)O)O)C(=C92)C(=O)O8)O)O)O)O)O)O)O
InChi Key
ZJVUMAFASBFUBG-UYMKNUMKSA-N
InChi Code
InChI=1S/C48H28O30/c49-10-1-6-17(31(59)27(10)55)19-23-21-22-24(47(70)76-38(21)35(63)33(19)61)20(34(62)36(64)39(22)75-46(23)69)18-9(4-13(52)28(56)32(18)60)43(66)74-37-14(5-72-42(6)65)73-48(71)41-40(37)77-44(67)7-2-11(50)25(53)29(57)15(7)16-8(45(68)78-41)3-12(51)26(54)30(16)58/h1-4,14,37,40-41,48-64,71H,5H2/t14-,37-,40+,41-,48?/m1/s1
Chemical Name
(1R,35R,38R,55S)-6,7,8,11,12,23,24,27,28,29,37,43,44,45,48,49,50-heptadecahydroxy-2,14,21,33,36,39,54-heptaoxaundecacyclo[33.20.0.04,9.010,19.013,18.016,25.017,22.026,31.038,55.041,46.047,52]pentapentaconta-4,6,8,10,12,16,18,22,24,26,28,30,41,43,45,47,49,51-octadecaene-3,15,20,32,40,53-hexone
Synonyms
Punicalagin
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
H2O : ~100 mg/mL (~92.19 mM)
DMSO : ~50 mg/mL (~46.09 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.17 mg/mL (2.00 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 21.7 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.17 mg/mL (2.00 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 21.7 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 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
10 mM 0.0922 mL 0.4609 mL 0.9219 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT02042742 Completed Dietary Supplement: punicalagin
and hydroxytyrosol mixture
Dietary Supplement: Control
supplement (maltodextrin)
Healthy Instituto de Investigación Hospital
Universitario La Paz
April 2013 Phase 4
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