Description

Proanthocyanidin C1 CAS NO 65085-09-8 is a specific, high-purity oligomeric proanthocyanidin (OPC) belonging to the procyanidin class of natural polyphenols. This compound is valued for its potent antioxidant properties and its role as a key reference standard in analytical and research settings. It is primarily sought by manufacturers and researchers in the nutraceutical, pharmaceutical, and cosmetic industries for product development, quality control, and advanced biological studies.

Application

• Reference Standard: Used as a high-purity analytical standard for the identification and quantification of proanthocyanidins in raw materials and finished products via HPLC, LC-MS, or other chromatographic methods.
• Nutraceutical Formulations: Incorporated into dietary supplements and functional foods for its well-documented antioxidant and free radical scavenging activities.
• Cosmetic & Skincare Actives: Serves as a key bioactive ingredient in anti-aging, protective, and reparative skincare formulations due to its ability to support collagen structure and protect against environmental stressors.
• Pharmaceutical Research: Employed in preclinical and clinical research to investigate potential therapeutic benefits related to vascular health, inflammation, and metabolic syndromes.
• Beverage & Food Fortification: Used to enhance the antioxidant profile and stability of health-focused beverages, chocolates, and other functional food products.
• Natural Color & Preservative: Can contribute to color stability in products and act as a natural preservative by inhibiting oxidation.

Basic Information

Product Name	Proanthocyanidin C1
CAS No.	65085-09-8
Molecular Formula	C45H36O18
Molecular Weight	864.76 g/mol
Synonyms	Procyanidin C1; Proanthocyanidin C-1; Procyanidin trimer C1; [4,8,8']Trimeric procyanidin; Epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin; Grape seed proanthocyanidin C1; OPC C1
EINECS	Contact for details

Quality Control

Our Proanthocyanidin C1 is produced and tested under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical methods including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with each batch. We support compliance with relevant standards for research and ingredient use.

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 material is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep container tightly sealed under an inert gas such as argon or nitrogen to prevent degradation.

Specification

Item	Specification
Appearance	Light brown to white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤1.0%
Heavy Metals (as Pb)	≤20 ppm
Solvent Residues (GC)	Meets ICH guidelines

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