Description

4H-1-Benzopyran-4-One, 2,3-Dihydro-3,5-Dihydroxy-2-(3-Hydroxy-4-Methoxyphenyl)-7-Methoxy-, (2R,3R)- is a high-purity, stereochemically defined flavonoid compound of significant interest in advanced research and development. This compound matters for its potential as a key intermediate or reference standard in the synthesis of novel bioactive molecules and pharmaceuticals. It is primarily needed by R&D laboratories, pharmaceutical companies, and fine chemical manufacturers focused on developing new therapeutic agents, nutraceuticals, and high-value specialty chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral building block for the synthesis of novel drug candidates with specific stereochemical requirements.
• Reference Standard: Used as a high-purity analytical standard in HPLC, LC-MS, and NMR for quality control and method development in pharmaceutical and botanical extract analysis.
• Biochemical Research: Employed in in vitro studies to investigate structure-activity relationships (SAR) of flavonoid derivatives for antioxidant, anti-inflammatory, or other biological activities.
• Nutraceutical Development: Acts as a precursor or model compound for developing standardized, high-potency botanical supplements and functional food ingredients.
• Fine Chemical Synthesis: Utilized in the multi-step synthesis of complex natural product analogs and specialty organic compounds for material science or agrochemical research.

Basic Information

Product Name	4H-1-Benzopyran-4-One, 2,3-Dihydro-3,5-Dihydroxy-2-(3-Hydroxy-4-Methoxyphenyl)-7-Methoxy-, (2R,3R)-
CAS No.	79995-67-8
Molecular Formula	C17H16O7
Molecular Weight	332.31 g/mol
Synonyms	(2R,3R)-Dihydroquercetin 3',7-Dimethyl Ether; (2R,3R)-Taxifolin 3',7-Dimethyl Ether; (2R,3R)-3,5,3'-Trihydroxy-4',7-dimethoxyflavanone; (2R,3R)-3,5-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-2,3-dihydrochromen-4-one; (2R,3R)-4H-1-Benzopyran-4-one, 2,3-dihydro-3,5-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-; Dimethylated (2R,3R)-Taxifolin; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is characterized using advanced analytical techniques including HPLC, GC, NMR, and MS to confirm identity, purity, and stereochemical integrity. We adhere to a cGMP-compliant quality management system for traceability and reproducibility. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

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 light-sensitive nature and propensity for oxidation, long-term storage under an inert atmosphere (e.g., nitrogen or argon) in a freezer (-20°C) is recommended for optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Optical Rotation	Specification available upon request
Heavy Metals	< 10 ppm
Residual Solvents	Complies with ICH guidelines
Water Content (KF)	< 0.5%

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