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 3CL^pro 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].

Punicalagin (100 mg/ml) induces apoptosis in HT-29, HCT116 colon cells^[1].
Punicalagin slightly inhibits the PL^pro 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].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

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

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

1084.72

C₄₈H₂₈O₃₀

65995-63-3

安石榴甙

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

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

DMSO : 50 mg/mL (46.09 mM; Need ultrasonic)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

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

  此方案可获得 ≥ 2.17 mg/mL (2.00 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 21.7 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

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

  此方案可获得 ≥ 2.17 mg/mL (2.00 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 21.7 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明

• [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.