Description

Procyanidin B3 is a specific dimeric proanthocyanidin, a class of potent polyphenolic antioxidants naturally found in various plants. This compound is valued for its significant biological activity, particularly its strong free radical scavenging and anti-inflammatory properties. It serves as a critical raw material and reference standard for the nutraceutical, cosmetic, and pharmaceutical industries, where consistent purity and reliable supply are paramount.

Application

• Nutraceutical & Dietary Supplements: Used as a key active ingredient in formulations targeting antioxidant support, cardiovascular health, and anti-aging benefits.
• Cosmetic & Skincare Products: Incorporated into serums, creams, and lotions for its protective effects against oxidative stress and UV-induced skin damage, promoting skin elasticity and health.
• Pharmaceutical Research & Development: Employed as a reference standard in analytical testing and as a lead compound in studies for metabolic and inflammatory conditions.
• Functional Food & Beverages: Added to health-focused foods and drinks to enhance their antioxidant capacity and functional health claims.
• Natural Preservatives: Utilized in certain applications to leverage its antioxidant properties for extending the shelf-life of perishable products.

Basic Information

Product Name	Procyanidin B3
CAS No.	23567-23-9
Molecular Formula	C30H26O12
Molecular Weight	578.5 g/mol
Synonyms	Procyanidin B3; Procyanidol B3; Epicatechin-(4β→8)-catechin; Catechin-(4α→8)-epicatechin; [4,8]-Bi-(-)-epicatechin; Dimeric Proanthocyanidin B3; Proanthocyanidin B3; Grape Seed Extract P2
EINECS	Contact for details

Quality Control

Our Procyanidin B3 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for research and commercial use. Certificates of Analysis (COA) documenting purity, residual solvents, and heavy metals 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 to minimize oxidation. Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (HPLC/UV)	Conforms to reference standard
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤10 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.