Description

Fisetinidol-(4A8)-Catechin is a specialized proanthocyanidin oligomer, a member of the condensed tannin family. This compound is valued for its unique chemical structure and potent biological activity, making it a critical intermediate and reference standard for advanced research and development. It is primarily sought by researchers and manufacturers in the nutraceutical, pharmaceutical, and cosmetic industries for its antioxidant and bioactive properties.

Application

• Pharmaceutical Research: Serves as a high-purity reference standard and key intermediate in the development of novel therapeutic agents targeting oxidative stress and inflammation.
• Nutraceutical Formulation: Used as an active ingredient or a marker compound in premium dietary supplements and functional foods for enhanced antioxidant support.
• Cosmetic Science: Incorporated into advanced skincare formulations for its potential anti-aging and skin-protective benefits.
• Biochemical Studies: Employed in academic and industrial laboratories to study the structure-activity relationships of proanthocyanidins and their metabolic pathways.
• Analytical Chemistry: Utilized as a certified reference material (CRM) for the qualitative and quantitative analysis of complex tannin mixtures via HPLC, LC-MS, and NMR.

Basic Information

Product Name	Fisetinidol-(4A8)-Catechin
CAS No.	69127-11-3
Molecular Formula	C30H26O12
Molecular Weight	578.52 g/mol
Synonyms	Fisetinidol-(4α→8)-Catechin; Procyanidin B-7; Procyanidin B7; [4,8]-Bis-(fisetinidol-(4α→8)-catechin); Fisetinidol-(4→8)-catechin dimer; Condensed Tannin Dimer; Proanthocyanidin B-7; (2R,3S,4S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol (4→8) (2R,3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol
EINECS	Contact for details

Quality Control

Our Fisetinidol-(4A8)-Catechin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and mass spectrometry, to ensure it meets the stringent requirements for research and development. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation. Keep the container sealed to protect this hygroscopic and light-sensitive material from moisture and air.

Specification

Item	Specification
Appearance	Light brown to tan powder
Identification (HPLC)	Conforms
Identification (NMR)	Conforms
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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