Description

Pyrocyanidin B-3 is a specific procyanidin dimer, a member of the condensed tannin (proanthocyanidin) family of natural polyphenols. This compound is valued for its potent antioxidant and bioactive properties, making it a key ingredient for research and product development. It is primarily sought by manufacturers and researchers in the nutraceutical, cosmetic, and pharmaceutical industries for applications ranging from dietary supplements to functional skincare.

Application

• Nutraceutical & Dietary Supplements: Used as a standardized active ingredient in antioxidant formulations and products targeting cardiovascular and metabolic health.
• Cosmetic & Skincare Products: Incorporated into anti-aging serums, creams, and lotions for its ability to neutralize free radicals and protect skin from environmental stressors.
• Pharmaceutical Research: Serves as a reference standard and active pharmaceutical ingredient (API) intermediate in preclinical studies for inflammation, diabetes, and neurodegenerative diseases.
• Functional Food & Beverages: Added to enhance the antioxidant capacity of health-focused foods and drinks.
• Analytical Standard: Employed as a high-purity calibration standard in HPLC and LC-MS analysis for quality control of plant extracts and complex botanical products.

Basic Information

Product Name	Pyrocyanidin B-3
CAS No.	20555-01-5
Molecular Formula	C30H26O12
Molecular Weight	578.52 g/mol
Synonyms	Procyanidin B-3; Procyanidol B-3; Epicatechin-(4β→8)-catechin; (+)-Catechin-(4α→8)-(-)-epicatechin; [4,8]-Bi-(-)-epicatechin; Dimeric Procyanidin B3; Condensed Tannin Dimer B3
EINECS	Contact for details

Quality Control

Our Pyrocyanidin B-3 is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, UV), to ensure it meets the high standards required for research and commercial use. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C for long-term stability. This product is hygroscopic (moisture-sensitive) and light-sensitive; desiccants are recommended within the primary container.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤0.5%
Heavy Metals (as Pb)	≤20 ppm

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