Description

(-)-Epiafzelechin CAS NO 24808-04-6 is a high-purity, naturally derived flavan-3-ol compound belonging to the flavonoid family. This compound is valued for its role as a key reference standard and active research chemical in the study of polyphenol bioactivity. It is primarily sought by research institutions and manufacturers in the pharmaceutical, nutraceutical, and cosmetic industries for applications in antioxidant, anti-inflammatory, and metabolic health research.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for analytical method development, validation, and quality control in drug discovery and natural product analysis.
• Nutraceutical Research: Serves as a key ingredient in preclinical studies investigating the health benefits of flavonoids, including antioxidant capacity and cellular protection.
• Cosmetic & Skincare Formulations: Incorporated into research for developing anti-aging and protective skincare products due to its potential antioxidant properties.
• Biochemical Research: Utilized in studies of enzyme inhibition, signal transduction pathways, and metabolic processes related to flavonoid intake.
• Food Science & Analysis: Acts as a standard for quantifying flavan-3-ol content in food products, beverages (like tea and wine), and botanical extracts.
• Academic & Institutional Research: Employed in universities and labs for fundamental research on plant polyphenols, their structure, and biological activities.

Basic Information

Product Name	(-)-Epiafzelechin
CAS No.	24808-04-6
Molecular Formula	C15H14O5
Molecular Weight	274.27 g/mol
Synonyms	(-)-Afzelechin; (2R,3R)-2-(4-Hydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol; Epiafzelechin; L-Epiafzelechin; Afzelechin, (-)-; 24808-04-6; NSC 407303
EINECS	Contact for details

Quality Control

Our (-)-Epiafzelechin is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation by spectroscopic methods (IR, NMR). We provide full traceability and Certificates of Analysis (COA) are available for all shipments, ensuring compliance with research-grade standards.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This compound is light-sensitive and easily oxidized; avoid repeated exposure to air, light, and moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
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.