Description

Ent-Epifisetinidol is a high-purity, naturally derived flavan-3-ol compound, also known as ent-epifisetinidol. This stereoisomer is valued for its role as a key chiral building block and reference standard in advanced organic synthesis and phytochemical research. It is essential for researchers and manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors who require precise stereochemistry for developing bioactive compounds and analytical methods. Our product ensures consistent quality and reliable supply for critical R&D and production applications.

Application

• Pharmaceutical Intermediate: Serves as a chiral precursor for the synthesis of novel drug candidates and complex natural product analogs.
• Analytical Reference Standard: Used in HPLC, LC-MS, and NMR for the qualitative and quantitative analysis of plant extracts and complex mixtures containing flavanoids.
• Nutraceutical Research: Employed in studies investigating the structure-activity relationships (SAR) of dietary flavonoids and their metabolites.
• Fine Chemical Synthesis: Acts as a specialized building block for creating stereochemically defined libraries of compounds for screening.
• Academic & Industrial R&D: A critical tool for research in organic chemistry, phytochemistry, and medicinal chemistry focused on polyphenolic compounds.

Basic Information

Product Name	Ent-Epifisetinidol
CAS No.	895-23-8
Molecular Formula	C15H14O6
Molecular Weight	290.27 g/mol
Synonyms	ent-Epifisetinidol; (2R,3S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol; ent-Fisetinidol; (-)-Fisetinidol; Fisetinidol enantiomer; 3',4',5,7-Tetrahydroxyflavan; Flavan-3-ol, 2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3,5,7-triol, (2R,3S)-
EINECS	Contact for details

Quality Control

Every batch of Ent-Epifisetinidol is produced and tested under a strict quality management system. We ensure identity, purity, and consistency through advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, chiral purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity	≥ 99.0% ee
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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