Silybin CAS 22888-70-6

Purity ≥95%In StockPharmaceutical Standards
CAS No.22888-70-6
Molecular FormulaC25H22O10
Molecular Weight482.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Silybin CAS 22888-70-6 chemical structure

Description

Owing to a flavonoid core, a hydroxyl group, an ether linkage, Silybin is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 482.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Silybin (CAS 22888-70-6) is a high-purity analytical reference standard with the molecular formula C25H22O10 and a molecular weight of 482.44 g/mol.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures Silybin under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC25H22O10
Molecular Weight482.44 g/mol
AppearancePale yellow to yellow crystalline powder
Purity≥95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963

Related Silybin Standards

Recommended Standards

Why CATO?