Silybin
(Synonyms: 水飞蓟宾) 目录号 : GC41533
Hepatoprotective flavonoid and 5-LO inhibitor
Cas No.:802918-57-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Silybin is the major flavonolignan found in milk thistle (S. marianum). It inhibits wild mushroom tyrosinase (IC50 = 1.7 μM). Silybin scavenges superoxide radicals (IC50 = 55.2 μM) and inhibits lipid peroxidation in vitro (IC50 = 73.92 μM).
| Cas No. | 802918-57-6 | SDF | |
| 别名 | 水飞蓟宾 | ||
| Canonical SMILES | OC1=CC(O)=CC(O[C@H](C2=CC3=C(OC(CO)C(C4=CC(OC)=C(O)C=C4)O3)C=C2)[C@H]5O)=C1C5=O | ||
| 分子式 | C25H22O10 | 分子量 | 482.4 |
| 溶解度 | DMF: 20 mg/ml,DMF:PBS (pH 7.2)(1:9): .5 mg/ml,DMSO: 10 mg/ml,Ethanol: .1 mg/ml | 储存条件 | Store at -20°C,protect from light |
| 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 | 2.073 mL | 10.3648 mL | 20.7297 mL |
| 5 mM | 0.4146 mL | 2.073 mL | 4.1459 mL |
| 10 mM | 0.2073 mL | 1.0365 mL | 2.073 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。
Silymarin/Silybin and Chronic Liver Disease: A Marriage of Many Years
Molecules 2017 Jan 24;22(2):191.PMID:28125040DOI:10.3390/molecules22020191.
Silymarin is the extract of Silybum marianum, or milk thistle, and its major active compound is Silybin, which has a remarkable biological effect. It is used in different liver disorders, particularly chronic liver diseases, cirrhosis and hepatocellular carcinoma, because of its antioxidant, anti-inflammatory and antifibrotic power. Indeed, the anti-oxidant and anti-inflammatory effect of silymarin is oriented towards the reduction of virus-related liver damages through inflammatory cascade softening and immune system modulation. It also has a direct antiviral effect associated with its intravenous administration in hepatitis C virus infection. With respect to alcohol abuse, silymarin is able to increase cellular vitality and to reduce both lipid peroxidation and cellular necrosis. Furthermore, silymarin/Silybin use has important biological effects in non-alcoholic fatty liver disease. These substances antagonize the progression of non-alcoholic fatty liver disease, by intervening in various therapeutic targets: oxidative stress, insulin resistance, liver fat accumulation and mitochondrial dysfunction. Silymarin is also used in liver cirrhosis and hepatocellular carcinoma that represent common end stages of different hepatopathies by modulating different molecular patterns. Therefore, the aim of this review is to examine scientific studies concerning the effects derived from silymarin/Silybin use in chronic liver diseases, cirrhosis and hepatocellular carcinoma.
Silybin, a Major Bioactive Component of Milk Thistle (Silybum marianum L. Gaernt.)-Chemistry, Bioavailability, and Metabolism
Molecules 2017 Nov 10;22(11):1942.PMID:29125572DOI:10.3390/molecules22111942.
Milk thistle (Silybum marianum) is a medicinal plant that has been used for thousands of years as a remedy for a variety of ailments. The main component of S. marianum fruit extract (silymarin) is a flavonolignan called Silybin, which is not only the major silymarin element but is also the most active ingredient of this extract, which has been confirmed in various studies. This compound belongs to the flavonoid group known as flavonolignans. Silybin's structure consists in two main units. The first is based on a taxifolin, the second a phenyllpropanoid unit, which in this case is conyferil alcohol. These two units are linked together into one structure by an oxeran ring. Since the 1970s, Silybin has been regarded in official medicine as a substance with hepatoprotective properties. There is a large body of research that demonstrates Silybin's many other healthy properties, but there are still a lack of papers focused on its molecular structure, chemistry, metabolism, and novel form of administration. Therefore, the aim of this paper is a literature review presenting and systematizing our knowledge of the Silybin molecule, with particular emphasis on its structure, chemistry, bioavailability, and metabolism.
Silybin and its congeners: from traditional medicine to molecular effects
Nat Prod Rep 2022 Jun 22;39(6):1264-1281.PMID:35510639DOI:10.1039/d2np00013j.
Covering: 2015 up to 2022 (Feb)Silymarin, an extract of milk thistle (Silybum marianum) fruits, has been used in various medicinal applications since ancient times. A major component of silymarin is the flavonolignan Silybin and its relatives isosilybin, silychristin, silydianin, 2,3-dehydrosilybin, and some others. Except for silydianin, they occur in nature as two stereomers. This review focuses on recent developments in chemistry, biosynthesis, modern advanced analytical methods, and transformations of flavonolignans specifically reflecting their chirality. Recently described chemotypes of S. marianum, but also the newest findings regarding the pharmacokinetics, hepatoprotective, antiviral, neuroprotective, and cardioprotective activity, modulation of endocrine functions, modulation of multidrug resistance, and safety of flavonolignans are discussed. A growing number of studies show that the respective diastereomers of flavonolignans have significantly different activities in anisotropic biological systems. Moreover, it is now clear that flavonolignans do not act as antioxidants in vivo, but as specific ligands of biological targets and therefore their chirality is crucial. Many controversies often arise, mainly due to the non-standard composition of this phytopreparation, the use of various undefined mixtures, the misattribution of silymarin vs. Silybin, and also the failure to consider the chemistry of the respective components of silymarin.
Chemistry of Silybin
Nat Prod Rep 2014 Sep;31(9):1138-57.PMID:24977260DOI:10.1039/c3np70122k.
Silybin, a secondary metabolite isolated from the seeds of the blessed milk thistle (Silybum marianum) was discovered as the first member of a new family of natural compounds called flavonolignans in 1959. Over the years it has received the research attention of many organic chemists. This research has resulted in a number of semisynthetic derivatives prepared in an effort to modulate and better target the biological activities of Silybin or to improve its physical properties, such as its solubility. A fundamental breakthrough in Silybin chemistry was the determination of the absolute configurations of Silybin A and Silybin B, and the development of methods for their separation. This review covers articles dealing with Silybin chemistry and also summarizes all the derivatives prepared.
Milk thistle (Silybum marianum): A concise overview on its chemistry, pharmacological, and nutraceutical uses in liver diseases
Phytother Res 2018 Nov;32(11):2202-2213.PMID:30080294DOI:10.1002/ptr.6171.
Milk thistle (MT; Silybum marianum), a member of the Asteraceae family, is a therapeutic herb with a 2,000-year history of use. MT fruits contain a mixture of flavonolignans collectively known as silymarin, being Silybin (also named silibinin) the main component. This article reviews the chemistry of MT, the pharmacokinetics and bioavailability, the pharmacologically relevant actions for liver diseases (e.g., anti-inflammatory, immunomodulating, antifibrotic, antioxidant, and liver-regenerating properties) as well as the clinical potential in patients with alcoholic liver disease, nonalcoholic fatty liver disease, viral hepatitis, drug-induced liver injury, and mushroom poisoning. Overall, literature data suggest that, despite encouraging preclinical data, further well-designed randomized clinical trials are needed to fully substantiate the real value of MT preparations in liver diseases.