Description

4H-1-Benzopyran-4-One, 2,3-Dihydro-3,5,7-Trihydroxy-2-(4-Methoxyphenyl)-, (2R,3R)- is a high-purity, stereochemically defined flavonoid compound. This product 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 the synthesis and analysis of bioactive molecules.

Application

• Pharmaceutical Intermediate: A critical chiral building block for the synthesis of novel drug candidates with specific stereochemical requirements.
• Reference Standard: Used in analytical laboratories for method development, validation, and quality control of flavonoid-based products via HPLC, LC-MS, or NMR.
• Biochemical Research: Employed in studies investigating the structure-activity relationships (SAR) of flavonoids, particularly those related to antioxidant or enzyme-inhibitory pathways.
• Nutraceutical Development: Serves as a high-purity standard for the characterization and standardization of complex botanical extracts intended for dietary supplements.
• Fine Chemical Synthesis: Utilized in custom synthesis and process chemistry for creating specialized derivatives with potential biological activity.

Basic Information

Product Name	4H-1-Benzopyran-4-One, 2,3-Dihydro-3,5,7-Trihydroxy-2-(4-Methoxyphenyl)-, (2R,3R)-
CAS No.	137225-59-3
Molecular Formula	C16H14O6
Molecular Weight	302.28 g/mol
Synonyms	(2R,3R)-Dihydrokaempferol; (2R,3R)-Aromadendrin; (2R,3R)-Taxifolin 4'-Methyl Ether; (2R,3R)-3,5,7-Trihydroxy-2-(4-methoxyphenyl)-2,3-dihydrochromen-4-one; (2R,3R)-2,3-Dihydrokaempferol; (2R,3R)-3,5,7-Trihydroxy-2-(4-methoxyphenyl)chroman-4-one; (2R,3R)-4H-1-Benzopyran-4-one, 2,3-dihydro-3,5,7-trihydroxy-2-(4-methoxyphenyl)-
EINECS	Contact for details

Quality Control

Our (2R,3R)-Dihydrokaempferol is produced under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets exacting standards for research and development. Certificates of Analysis (COA) detailing identity, purity, and chiral excess 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). Due to its hygroscopic nature, the container should be kept in a desiccated environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% (2R,3R)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%

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