Description

Silymonin is a bioactive flavonolignan compound, a key constituent of the standardized extract derived from milk thistle (*Silybum marianum*). This high-purity ingredient is valued for its targeted biological activity and serves as a critical reference standard and active component in advanced formulations. It is primarily utilized by manufacturers and research institutions in the pharmaceutical, nutraceutical, and cosmeceutical industries seeking reliable, high-quality botanical actives.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the identification, assay, and quality control of silymarin complex and related products in pharmacopoeial methods (e.g., USP, EP).
• Dietary Supplement Formulation: Incorporated into high-end nutraceutical capsules, tablets, and liquid extracts aimed at supporting liver health and providing antioxidant benefits.
• Cosmeceutical Active Ingredient: Formulated into advanced skincare serums, creams, and lotions for its purported anti-aging, antioxidant, and skin-protective properties.
• Biomedical Research: Employed in in vitro and in vivo studies to investigate hepatoprotective mechanisms, anti-inflammatory effects, and potential therapeutic applications.
• Functional Food & Beverage Fortification: Added to specialized health drinks and food products designed to deliver targeted wellness benefits.

Basic Information

Product Name	Silymonin
CAS No.	70815-31-5
Molecular Formula	C25H22O10
Molecular Weight	482.44 g/mol
Synonyms	Silymonin; Silybin B; 2,3-Dehydrosilybin; 3,5,7-Trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-4-chromanone; Dehydrosilybin; Silybinin B; (2R,3R)-2,3-Dihydro-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-7-(3,5,7-trihydroxy-4-oxobenzopyran-2-yl)benzodioxin
EINECS	Contact for details

Quality Control

Our Silymonin is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation via spectroscopic methods (IR, MS, NMR). We provide full traceability and Certificates of Analysis (COA) are available for every shipment, ensuring compliance with relevant standards for research and manufacturing use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤20 ppm
Solvent Residues	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.