Description

(S)-2-(3,4-Dihydroxyphenyl)-2,3-Dihydro-5,7-Dihydroxy-6-Methoxy-4H-1-Benzopyran-4-One is a high-purity, optically active flavonoid derivative with significant biological activity. This compound is valued for its role as a key chiral intermediate and reference standard in advanced pharmaceutical research and development. It is primarily sought by R&D laboratories and manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors for applications requiring precise stereochemistry and high purity.

Application

• Pharmaceutical Intermediate: A critical chiral building block for the synthesis of novel therapeutic agents targeting oxidative stress and inflammation.
• Reference Standard: Used in analytical method development and validation for quality control in pharmaceutical manufacturing.
• Biochemical Research: Employed in studies investigating enzyme inhibition, antioxidant mechanisms, and cellular signaling pathways.
• Nutraceutical Development: Serves as a high-purity ingredient for advanced dietary supplement formulations focused on bioavailability.
• Cosmeceutical Actives: Incorporated into premium skincare products for its potential antioxidant and protective properties.

Basic Information

Product Name	(S)-2-(3,4-Dihydroxyphenyl)-2,3-Dihydro-5,7-Dihydroxy-6-Methoxy-4H-1-Benzopyran-4-One
CAS No.	96681-58-2
Molecular Formula	C16H14O7
Molecular Weight	318.28 g/mol
Synonyms	(S)-Taxifolin; (2S,3S)-Dihydroquercetin; (2S,3S)-Taxifolin; (S)-Dihydroquercetin; (2S,3S)-3,3',4',5,7-Pentahydroxyflavanone; (S)-3,5,7,3',4'-Pentahydroxyflavanone; (2S,3S)-2,3-Dihydroquercetin; (S)-3,3',4',5,7-Pentahydroxy-2,3-dihydroflavonol
EINECS	Contact for details

Quality Control

Our (S)-Taxifolin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets stringent specifications for research and production use. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0% (S-enantiomer)
Loss on Drying	≤1.0%
Residue on Ignition	≤0.2%
Heavy Metals	≤20 ppm

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