Silymarin 是一种多酚类黄酮，是从水飞蓟或水飞蓟的种子中提取的一种 SARS-CoV-2 主蛋白酶抑制剂。它可降低肿瘤细胞的增殖，血管生成以及胰岛素抵抗，用于预防和治疗肝脏疾病，有潜力研究 COVID-19 。

Silymarin (Silybin B) is a polyphenolic flavonoid that extracts from the milk thistle or seeds of Silybum marianum. It is used in the prevention and treatment of liver diseases.

Mechanism of Silymarin involves different biochemical reactions, such as stimulation of the rate of ribosomal RNA synthesis by stimulating the transcription of polymerase I and ribosomal RNA genes, blockage of alpha-glycoside loops toxin intake, and protection of cell membranes from free radical-induced damage. Silymarin also displays a substantial protective effect against UVB-induced canceration at different stages, possibly through its strong antioxidant properties.

The intravenous injection LD50 of Silymarin is 391.4 mg/kg, 70.1 mg/kg, 142.3 mg/kg for mice, rats, rabbits, respectively.

65666-07-1

C25H22O10

482.441

水飞蓟素;Silybin B

H2O:<1 mgml
DMSO:97 mg/mL (201.06 mM)
Ethanol:1 mg/mL (2.07 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years