Description

5,7-Dihydroxy-8-[2-Hydroxy-5-(5-Hydroxy-7-Methoxy-4-Oxo-4H-1-Benzopyran-2-Yl)Phenyl]-2-(4-Hydroxyphenyl)-4-Benzopyrone CAS NO 21763-71-3 is a complex flavonoid derivative belonging to the benzopyrone chemical class, valued for its unique polyphenolic structure. This compound is of significant interest in advanced research and development due to its potential bioactive properties. It serves as a critical high-purity reference standard and a key synthetic intermediate for specialized applications in life sciences and material chemistry.

Application

• Pharmaceutical Research & Development: Used as a reference standard or building block in the synthesis and study of novel therapeutic agents, particularly those targeting oxidative stress and inflammation.
• Biochemical Research: Serves as a key intermediate or probe in studying enzyme inhibition, receptor binding, and other cellular mechanisms due to its specific flavonoid structure.
• Nutraceutical & Cosmetic Ingredient Development: Investigated for its potential antioxidant and UV-protective properties in the formulation of advanced skincare and dietary supplements.
• Analytical Chemistry: Employed as a certified reference material (CRM) for method development, calibration, and quality control in HPLC, LC-MS, and other analytical techniques.
• Organic Synthesis: Acts as a sophisticated precursor for the synthesis of more complex natural product analogs and specialized fine chemicals.
• Material Science Research: Explored for its potential in creating novel organic semiconductors or photoactive materials due to its extended conjugated system.

Basic Information

Product Name	5,7-Dihydroxy-8-[2-Hydroxy-5-(5-Hydroxy-7-Methoxy-4-Oxo-4H-1-Benzopyran-2-Yl)Phenyl]-2-(4-Hydroxyphenyl)-4-Benzopyrone
CAS No.	21763-71-3
Molecular Formula	C31H20O11
Molecular Weight	568.48 g/mol
Synonyms	8-[2-Hydroxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-chromen-2-yl)phenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one; 2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3-[4-hydroxy-3-(5-hydroxy-7-methoxy-4-oxo-4H-chromen-2-yl)phenyl]-4H-chromen-4-one (alternative IUPAC); Sophoraflavanone G; 5,7,2',4'-Tetrahydroxy-8-[3-hydroxy-5-(5-hydroxy-7-methoxy-4-oxochromen-2-yl)phenyl]flavanone; Kuwanon C (related compound); Flavonoid Derivative 21763-71-3
EINECS	Contact for details

Quality Control

Our 5,7-Dihydroxy-8-[2-Hydroxy-5-(5-Hydroxy-7-Methoxy-4-Oxo-4H-1-Benzopyran-2-Yl)Phenyl]-2-(4-Hydroxyphenyl)-4-Benzopyrone is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC purity analysis, spectroscopic identification (IR, NMR, MS), and residual solvent screening, to ensure it meets the high standards required for research and development. Comprehensive Certificates of Analysis (COA) with detailed chromatograms and spectral data are provided to guarantee traceability and consistency for your critical applications.

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 and easily oxidized nature, long-term storage under an inert atmosphere (e.g., nitrogen or argon) is recommended for optimal stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Purity (HPLC, anhydrous basis)	≥ 98.0%
Water Content (KF)	≤ 3.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	≤ 20 ppm

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