Proanthocyanidins - CAS:20347-71-1

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Proanthocyanidins (Synonyms:原花青素)

目录号 : KM18957 CAS No. : 20347-71-1 纯度 : ≥96%

Data Sheet 产品使用指南

Proanthocyanidins 是一类在高等植物中广泛分布的多酚化合物，由亲电子黄烷酰基单元组成。Proanthocyanidins 可用作抗氧化剂和抗癌剂。Proanthocyanidins 还显示出抗炎，保护心脏，抗菌和抗真菌的特性，可用于研究慢性静脉功能不全、毛细血管脆弱、晒伤和视网膜病变。

规格	价格	是否有货
10mg		In-stock
50mg		In-stock
100mg		In-stock
200mg	询价	In-stock
500mg	询价	In-stock

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生物活性

Proanthocyanidins are a class of polyphenolic that are widely distributed in higher plants, consisted of an electrophilic flavanyl unit. Proanthocyanidins can be used as antioxidant and anti-cancers agent. Proanthocyanidins also exhibit anti-inflammatory, cardioprotective, antibacterial and antifungal properties, which can be used in the treatment of chronic venous insufficiency, capillary fragility, sunburn and retinopathy..

体外研究

Proanthocyanidins are present in plants as complex mixtures of polymers. Predominant food sources are red wine, tea, chocolate and fruits like grapes, apples, pears, and cranberries.
The most interesting antibacterial activity of Proanthocyanidins is related to their presence in cranberries (Vaccinium macrocarpon Ait.). A number of clinical trials have demonstrated the effectiveness of cranberry consumption in preventing urinary tract infections (UTIs). Although UTIs can be caused by many microorganisms, more than 85% are caused by Escherichia coli. The presence of P-fimbriae on E. coli, which are proteinaceous fibers on the bacterial cell wall, has been clearly established as a virulence factor, since they are responsible by producing adhesions for adherence to uroepithelial cells. Recently, it is demonstrated that cranberry Proanthocyanidins might inhibit P-fimbriated E. coli from adhering to uroepithelial cells. The antiadhesion activity of cranberry juice appears to be related to the presence of Proanthocyanidins with at least one A-type linkage.

体内研究

The effects of cacao liquor Proanthocyanidins on 2- amino-1-methyl-6-phenylimidazo [4,5-b] pyridine-induced mutagenesis in vivo carcinogenesis in female Sprague-Dawley rats are investigated. In the Ames assay, Proanthocyanidins shows strong antimutagenic effects when assayed in the presence of S-9 mixture. They also inhibit significantly rat pancreatic carcinogenesis in the initiation stage, but not mammary carcinogenesis.

分子式

C₃₀H₂₆O₁₃

分子量

594.52

CAS号

20347-71-1

中文名称

原花青素

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 : 100 mg/mL (168.20 mM; Need ultrasonic)

H₂O : 5 mg/mL (8.41 mM; ultrasonic and adjust pH to 11 with Na2CO3)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	1.6820 mL	8.4101 mL	16.8203 mL
5 mM	0.3364 mL	1.6820 mL	3.3641 mL
10 mM	0.1682 mL	0.8410 mL	1.6820 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: 2.5 mg/mL (4.21 mM); Suspended solution; Need ultrasonic

此方案可获得 2.5 mg/mL (4.21 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。
以 1 mL 工作液为例，取 100 μL 25.0 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。
2.

请依序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (4.21 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (4.21 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 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。