Silibinin Details Product Name: Silibinin  Herb Source: Silybum marianum  Part Used: Fruit  Appearance: Yellow Powder  Test Method: HPLC  Specifications: 20%   CAS#: 22888-70-6  Molecular Formula & Molecular Weight: C25H22O10; 482.44 Silibinin Structural Formula: Melting Point & Solubility: Soluble in acetone, ethyl acetate, methanol, ethanol, slightly soluble in chloroform, practically insoluble in water. Monohydrate (methanol – water), mp.180 ℃; Anhydrous, mp.158 ℃ (180 …