Pinocembrin(Synonyms: 乔松素; (+)-Pinocoembrin; Dihydrochrysin; Galangin flavanone)

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Pinocembrin (Synonyms: 乔松素; (+)-Pinocoembrin; Dihydrochrysin; Galangin flavanone) 纯度: 99.65%

Pinocembrin ((+)-Pinocoembrin) 是从蜂胶中得到的黄酮类物质,为竞争性的组氨酸脱羧酶 (histidine decarboxylase) 抑制剂,同时为有效的抗过敏剂,具有抗氧化、抗菌、抗炎作用。

Pinocembrin(Synonyms: 乔松素; (+)-Pinocoembrin;  Dihydrochrysin;  Galangin flavanone)

Pinocembrin Chemical Structure

CAS No. : 480-39-7

规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥660 In-stock
5 mg ¥600 In-stock
10 mg ¥900 In-stock
25 mg ¥1900 In-stock
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100 mg   询价  

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生物活性

Pinocembrin ((+)-Pinocoembrin) is a flavonoid found in propolis, acts as a competitive inhibitor of histidine decarboxylase, and is an effective anti-allergic agent, with antioxidant, antimicrobial and anti-inflammatory properties[1].

体外研究
(In Vitro)

Pinocembrin (5, 10, 25, 50, 100 or 200 µM, 24 hours) significantly reduces cell viability of RBL-2H3 cells[1].
Pinocembrin (25 or 50 µM) suppresses iNOS, PGE-2 and COX-2 levels, increases p38-Mapk and IкB-α, and inhibits phosphorylation of IкB-α[1].

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.

Cell Viability Assay[1]

Cell Line: RBL-2H3 cells
Concentration: 5, 10, 25, 50, 100 or 200 µM
Incubation Time: 24 hours
Result: Decreased cell viability by ∼50% at ≥ 100 µM. Showed 75% cell viability at lower concentrations.

Clinical Trial

分子量

256.25

Formula

C15H12O4

CAS 号

480-39-7

中文名称

松属素;乔松素

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 83.33 mg/mL (325.19 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.9024 mL 19.5122 mL 39.0244 mL
5 mM 0.7805 mL 3.9024 mL 7.8049 mL
10 mM 0.3902 mL 1.9512 mL 3.9024 mL

*

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。-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。

In Vivo:

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: ≥ 2.08 mg/mL (8.12 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (8.12 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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: ≥ 2.08 mg/mL (8.12 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (8.12 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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
  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (8.12 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (8.12 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Hanieh H, et al. Pinocembrin, a novel histidine decarboxylase inhibitor with anti-allergic potential in in vitro. Eur J Pharmacol. 2017 Nov 5;814:178-186.

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