Proanthocyanidin A4
(Synonyms: 原花青素 A4) 目录号 : GC38485
Proanthocyanidin A4，从 E. sinica 根部分离的，在多种植物中发现的一种多酚。Proanthocyanidin A4 具有抗炎作用。
Cas No.:111466-29-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Proanthocyanidin A4, isolated from the root of E. sinica, is a polyphenol found in a variety of plants. Proanthocyanidin A4 possesses anti-inflammatory effects[1].
[1]. Lu WC, et al. Transformation of proanthocyanidin A2 to its isomers under different physiological pH conditions and common cell culture medium. J Agric Food Chem. 2011 Jun 8;59(11):6214-20.
| Cas No. | 111466-29-6 | SDF | |
| 别名 | 原花青素 A4 | ||
| Canonical SMILES | O[C@H]1[C@H](C2=CC=C(O)C(O)=C2)OC3=C4C(O[C@]5(C6=CC=C(O)C(O)=C6)OC7=CC(O)=CC(O)=C7[C@@]4([H])[C@H]5O)=CC(O)=C3C1 | ||
| 分子式 | C30H24O12 | 分子量 | 576.5 |
| 溶解度 | DMSO : ≥ 50 mg/mL (86.73 mM) | 储存条件 | Store at -20°C |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.7346 mL | 8.673 mL | 17.3461 mL |
| 5 mM | 0.3469 mL | 1.7346 mL | 3.4692 mL |
| 10 mM | 0.1735 mL | 0.8673 mL | 1.7346 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
[Condensed tannins from roots of Indigofera stachyodes]
Zhongguo Zhong Yao Za Zhi 2021 Aug;46(16):4131-4138.PMID:34467724DOI:10.19540/j.cnki.cjcmm.20210518.201.
Eleven condensed tannins were isolated from the roots of Indigofera stachyodes by various column chromatography techniques including silica gel, octadecyl silica(ODS), Sephadex LH-20, and semi-preparative high performance liquid chromatography(HPLC). These compounds were identified on the basis of physicochemical properties, nuclear magnetic resonance(NMR) and mass spectrometry(MS) data as stachyotannin A(1), epicatechin-(2β→O→7,4β→8)-epiafzelechin-(4β→8)-catechin(2), cinnamtannin D1(3), cinnamtannin B1(4), epicatechin-(2β→O→7,4β→8)-epiafzelechin-(4α→8)-epicatechin(5), gambiriin C(6), proanthocyanidin A1(7), proanthocyanidin A2(8), aesculitannin B(9), Proanthocyanidin A4(10), and procyanidin B5(11). Compound 1 is a new compound. Compounds 2-11 were isolated from Indigofera for the first time. Furthermore, compounds 1, 2, and 4-11 showed inhibitory effects on thrombin-induced ATP release in platelets.
Transformation of proanthocyanidin A2 to its isomers under different physiological pH conditions and common cell culture medium
J Agric Food Chem 2011 Jun 8;59(11):6214-20.PMID:21520967DOI:10.1021/jf104973h.
Proanthocyanidins constitute an important class of polyphenols ubiquitously found in plants. They have been extensively studied for their antioxidant capacity and bioactivity in vitro and in animal models. However, their stability under different pH conditions and in cell culture medium has not been well documented. In the present study, it was observed that proanthocyanidin A2 (PA2) was relatively more stable in acidic condition than in weak alkaline condition. PA2 was also quite unstable in basal-Dulbecco's Modified Eagle medium (b-DMEM medium) at 37 °C. The addition of PA2 to the cell culture medium accelerated its epimerization with a half-life of <15 min, and ethylenediaminetetraacetic acid (EDTA) could not stop the reaction. The results also demonstrated that the major isomers transformed in the weak alkaline condition or cell culture medium at 37 °C were identified as epicatechin-(4β→8; 2β→O→7)-ent-catechin (Proanthocyanidin A4) and epicatechin-(4β→6; 2β→O→7)-ent-catechin. The rates of transformation were dependent on the pH or the components of the medium. Therefore, the results obtained for PA2 in the cell culture bioassays, which were usually carried out for 24 h, might not represent the true activity of the original PA2. The stability and transformation of PA2 should be considered when the bioactivity of PA2 is evaluated in a given cell culture system.