Rhein-8-glucoside
(Synonyms: 大黄酸 8-葡糖苷; Rhein 8-O-β-D-Glucopyranoside) 目录号 : GC45807
An anthraquinone glycoside
Cas No.:34298-86-7
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
Rhein-8-glucoside is an anthraquinone glycoside that has been found in rhubarb.1 It increases the rate of sennoside A metabolism by mouse intestinal bacteria in vitro when used at concentrations ranging from 0.03 to 1 mM. Rhein-8-glucoside increases the purgative activity of sennoside A in mice in a dose-dependent manner. It also inhibits human protein tyrosine phosphatase (PTP1B; IC50 = 11.5 μM).2 Rhein-8-glucoside is metabolized to rhein by intestinal bacteria.1
|1. Takayama, K., Tsutsumi, H., Ishizu, T., et al. The influence of rhein 8-O-β-D-glucopyranoside on the purgative action of sennoside A from rhubarb in mice. Biol. Pharm. Bull. 35(12), 2204-2208 (2012).|2. Li, S., An, T.-Y., Li, J., et al. PTP1B inhibitors from Saussrurea lappa. J. Asian Nat. Prod. Res. 8(3), 281-286 (2006).
| Cas No. | 34298-86-7 | SDF | |
| 别名 | 大黄酸 8-葡糖苷; Rhein 8-O-β-D-Glucopyranoside | ||
| Canonical SMILES | O=C1C2=C(C=C(C(O)=O)C=C2O)C(C3=CC=CC(O[C@H]4[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O4)=C31)=O | ||
| 分子式 | C21H18O11 | 分子量 | 446.4 |
| 溶解度 | DMSO: slightly soluble | 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 | 2.2401 mL | 11.2007 mL | 22.4014 mL |
| 5 mM | 0.448 mL | 2.2401 mL | 4.4803 mL |
| 10 mM | 0.224 mL | 1.1201 mL | 2.2401 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。
Simultaneous Determination of Ten Active Components From Jinhongtang Granule in Rat Plasma by LC-MS/MS and its Application to a Comparative Pharmacokinetic Study in Normal and Sepsis Rats In Vivo and In Vitro
J Chromatogr Sci 2022 Aug 1;bmac043.PMID:35913259DOI:10.1093/chromsci/bmac043.
Jinhongtang granule (JHT) is a traditional Chinese medicine formula used for treatment of infection diseases including severe COVID-19. However, pharmacokinetics of JHT was unknown, especially in infection condition. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to simultaneously quantify ten active components form JHT in rat plasma. MS detection was performed by MRM scanning operating in the negative ionization mode. The method showed good linearity (r > 0.997). The accuracy, precision, matrix effect, recovery and stability were all satisfactory with current criterion. The method was successfully applied to compare the pharmacokinetic difference between normal and sepsis rats. The pharmacokinetic behaviors of analytes in sepsis rats were significantly different from those in normal rats. Cmax and AUC of rhein, emodin, aloe emodin, Rhein-8-glucoside, aloe emodin 8-glucoside, protocatechuic acid, epicatechin and salidroside, were significantly increased in sepsis rats, except for 4-hydroxycinnamic acid and ferulic acid. In vitro intestinal absorption study using everted intestinal sac preparations indicated that the intestinal permeability was altered under sepsis. In conclusion, pharmacokinetic difference of JHT between normal and sepsis rats were evaluated for the first time, which provided useful information for the clinical application of JHT as an integrative therapy for severe and critical COVID-19.
New aspects on the metabolism of the sennosides
Pharmacology 1988;36 Suppl 1:138-43.PMID:3368512DOI:10.1159/000138433.
Pure sennoside B was administered to rats. On appearance of the first wet faeces, sennoside B and its metabolites were determined in different parts of the alimentary tract, in faeces and in the urine. The total recovery of unchanged sennoside B and its metabolites was determined by alkali fusion followed by colorimetry and high-pressure liquid chromatography (HPLC). Alkali fusion in 1 N sodium hydroxide solution formed red solutions with sennosides and sennoside derivatives. The molar absorbance of sennosides A and B, sennidin B monoglucoside, sennidins, rhein, danthron, dithranol, Rhein-8-glucoside and rhein anthrone at wavelengths of 505-530 nm related approximately to the number of ionizable hydroxy groups in the molecule. Brown polymerized products were isolated from the senna drug. The colour intensity of these products was approximately the same by weight as that of the sennosides themselves, although sennidins could no longer be freed from these by acid hydrolysis. After administration of sennoside B, the average sum of unchanged glucoside and known metabolites in different parts of the gastrointestinal tract and faeces of rats was 61.6% according to HPLC and 92.8% according to the alkali fusion procedure. This difference is indicative of the presence of substances which are no longer identifiable as sennoside derivatives, either by HPLC or by other classical chromatographic methods. Sennosides seem to be partly present in the alimentary tract in polymerized or bound form. The alkali fusion method may be useful in connection with the isolation of as yet unknown metabolites of the sennosides in the gastrointestinal tract.
Laxative potency and acute toxicity of some anthraquinone derivatives, senna extracts and fractions of senna extracts
Pharmacol Toxicol 1987 Aug;61(2):153-6.PMID:3671329DOI:10.1111/j.1600-0773.1987.tb01794.x.
This paper investigates the laxative effect and acute toxicity of certain fractions of senna extracts in mice. The same tests were also carried out with several pure anthraquinone derivatives common in senna pods. The results show that the laxative and toxic components of senna pods and senna extracts can be separated. The most potent laxative components, sennosides A + B and Fraction V (relative potencies 1 and 0.9 respectively), have the lowest toxicity (relative intravenous toxicities 1 and less than 1). Fractions with very low laxative activity (Rhein-8-glucoside and Fraction IV, relative potencies 0.56 and 0.05) have the highest acute toxicity (relative toxicities 10 and 32 respectively).