Description

Procyanidin A3 is a potent oligomeric proanthocyanidin, a class of natural polyphenols known for their significant antioxidant and bioactive properties. This high-purity compound is valued for its superior stability and efficacy in advanced research and formulation development. It serves as a critical reference standard and active ingredient for the pharmaceutical, nutraceutical, and cosmetic industries, where precise bioactivity is paramount.

Application

• Pharmaceutical Research: Used as a reference standard in analytical methods (HPLC, LC-MS) for quality control and as a lead compound in studies targeting oxidative stress, inflammation, and cardiovascular health.
• Nutraceutical Formulations: Incorporated into dietary supplements and functional foods for its potent antioxidant capacity and potential health-promoting benefits.
• Cosmetic & Skincare Products: Acts as a key active ingredient in anti-aging, protective, and reparative serums and creams due to its ability to neutralize free radicals and support skin health.
• Biochemical Research: Employed in in vitro and in vivo studies to investigate mechanisms of action related to cell signaling, enzyme inhibition, and metabolic pathways.
• Standardized Botanical Extracts: Serves as a marker compound for the standardization and quality assurance of complex plant extracts like grape seed, pine bark, or cocoa.

Basic Information

Product Name	Procyanidin A3
CAS No.	86631-39-2
Molecular Formula	C30H24O12
Molecular Weight	576.5 g/mol
Synonyms	Procyanidin A3; Procyanidol A3; Epicatechin-(4β→8, 2β→O→7)-catechin; [4,8]-Bi-epicatechin; A-Type Procyanidin Dimer; Proanthocyanidin A3; 2,3-trans-3,4-trans-3',4'-trans-4,8,2',7'-Tetrahydroxy-flavan-(4β→8, 2β→O→7)-2,3-trans-3,4-cis-flavan-3,5,7,3',4'-pentol
EINECS	Contact for details

Quality Control

Our Procyanidin A3 is manufactured under strict quality management systems. Each batch is rigorously tested using advanced analytical techniques including HPLC and MS to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under inert atmosphere (e.g., argon or nitrogen) to prevent oxidation. Keep the container in a cool, dry, and well-ventilated area, separate from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals	≤20 ppm
Solvent Residues	Complies with ICH guidelines

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