Description

Silychristin B CAS NO 879325-58-3 is a specialized flavonolignan compound derived from the milk thistle plant (*Silybum marianum*). This high-purity phytochemical is valued for its role as a key analytical reference standard and a critical intermediate in advanced pharmaceutical and nutraceutical research. It is primarily sought by manufacturers and research institutions in the pharmaceutical, dietary supplement, and biotechnology sectors for product development, quality control, and bioactivity studies.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the identification, assay, and impurity profiling of silymarin-based drug products and extracts.
• Nutraceutical R&D: Serves as a key ingredient or marker compound in the development of standardized herbal supplements targeting liver health and antioxidant support.
• Bioactivity Research: Employed in *in-vitro* and *in-vivo* studies to investigate hepatoprotective, anti-inflammatory, and anticancer mechanisms.
• Analytical Chemistry: Essential for method development and validation in HPLC, LC-MS, and other chromatographic techniques for flavonolignan analysis.
• Cosmeceutical Formulations: Incorporated into advanced skincare products for its potential antioxidant and anti-aging properties.
• Quality Control Laboratories: Used to calibrate equipment and ensure batch-to-batch consistency of milk thistle extracts in GMP environments.

Basic Information

Product Name	Silychristin B
CAS No.	879325-58-3
Molecular Formula	C25H22O10
Molecular Weight	482.44 g/mol
Synonyms	Silychristin B; (2R,3R)-3,5,7-Trihydroxy-2-[(2R,3R)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-4H-chromen-4-one; 6-[3,5,7-Trihydroxy-4-oxo-2-(3,4,5-trihydroxyphenyl)chroman-2-yl]-2,3-dehydrosilybin; Flavonolignan from Silybum marianum; Milk Thistle Extract Component B
EINECS	Contact for details

Quality Control

Our Silychristin B is produced under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation (NMR, MS), to ensure it meets the stringent requirements for research and production. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). For long-term storage, consider conditions of 2-8°C. The product is light-sensitive (store away from light).

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	≤20 ppm

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