Description

8,14-Methano-2H,14H-1-benzopyrano[7,8-d][1,3]benzodioxocin-3,5,11,13,15-pentol, 2,8-bis(3,4-dihydroxyphenyl)-10-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-4-yl]-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-8-yl]-3,4-dihydro-, (2R,3R,4S,8R,14R,15R)- is a complex, high-purity polyphenolic compound belonging to the condensed tannin (proanthocyanidin) class. This compound is valued for its potent antioxidant and free radical scavenging properties, which are central to its biological activity. It is a critical material for research and development in the pharmaceutical, nutraceutical, and advanced cosmetic industries, where standardized bioactive ingredients are required.

Application

• Pharmaceutical Research & Development: As a reference standard or active pharmaceutical ingredient (API) intermediate for studying cardiovascular health, neuroprotection, and anti-inflammatory pathways.
• Nutraceutical Formulations: Incorporated into dietary supplements targeting oxidative stress, with applications in anti-aging and metabolic health products.
• Advanced Cosmetic Science: Used in high-performance skincare serums and creams for its potent antioxidant and potential collagen-stabilizing effects.
• Biochemical Research: Serves as a key reagent in enzymology studies and for investigating structure-activity relationships (SAR) of complex polyphenols.
• Standardization Material: Employed as a primary standard for the quality control and HPLC quantification of proanthocyanidin-rich extracts (e.g., from grape seed, pine bark).

Basic Information

Item	Details
Product Name	8,14-Methano-2H,14H-1-benzopyrano[7,8-d][1,3]benzodioxocin-3,5,11,13,15-pentol, 2,8-bis(3,4-dihydroxyphenyl)-10-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-4-yl]-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-8-yl]-3,4-dihydro-, (2R,3R,4S,8R,14R,15R)-
CAS No.	97233-47-1
Molecular Formula	C75H52O36
Molecular Weight	1569.19 g/mol
Synonyms	Procyanidin C1; Procyanidin C-1; Cinnamtannin B1; Cinnamtannin B-1; Epicatechin-(4β→8,2β→O→7)-epicatechin-(4β→8)-epicatechin; [2R-[2α,3α,4β(2R*,3R*,4R*),8α,14α,15α]]-2,8-Bis(3,4-dihydroxyphenyl)-10-[2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-4-yl]-4-[2-(3,4-dihydroxyphenyl)-3,4-dihydro-3,5,7-trihydroxy-2H-1-benzopyran-8-yl]-3,4-dihydro-8,14-methano-2H,14H-1-benzopyrano[7,8-d][1,3]benzodioxocin-3,5,11,13,15-pentol
EINECS	Contact for details

Quality Control

Our Procyanidin C1 is manufactured under strict quality management systems. Each batch is characterized and tested using advanced analytical techniques including HPLC, MS, and NMR to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing batch-specific results are provided and can be tailored to meet the requirements of pharmaceutical (ICH Q7), nutraceutical (USP), and research-grade applications.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C under an inert atmosphere (e.g., argon or nitrogen) to prevent oxidation. Allow the product to equilibrate to room temperature in a desiccator before opening to minimize moisture uptake. The storage area should be cool, dry, and well-ventilated.

Specification

Item	Specification
Appearance	Light brown to tan powder
Identification (HPLC)	Conforms to reference standard
Identification (MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
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.