Description

Keracyanin Chloride is a naturally occurring anthocyanin pigment, specifically the 3-O-rutinoside of cyanidin. This high-purity compound is valued for its potent antioxidant properties and vibrant color profile, making it a critical standard and active ingredient in advanced research and product development. It serves as an essential raw material for the pharmaceutical, nutraceutical, and high-value food colorant industries, where precise chemical identity and consistent quality are paramount.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the identification and quantification of anthocyanins in drug substances and herbal extracts.
• Nutraceutical & Functional Food Ingredient: Incorporated into supplements and fortified foods for its well-documented antioxidant and potential health-promoting benefits.
• Natural Food Colorant: Provides a stable, vibrant red-to-blue hue in premium food and beverage applications, serving as an alternative to synthetic dyes.
• Biochemical & Nutritional Research: A key reagent in studies investigating the bioavailability, metabolism, and biological activities of dietary polyphenols.
• Cosmeceutical Formulations: Used in advanced skincare products for its antioxidant properties, which help protect skin from environmental oxidative stress.
• Analytical Chemistry: Employed as a high-purity standard for method development and validation in HPLC, LC-MS, and other analytical techniques.

Basic Information

Product Name	Keracyanin Chloride
CAS No.	18719-76-1
Molecular Formula	C27H31O15Cl
Molecular Weight	631.0 g/mol (approx.)
Synonyms	Cyanidin 3-O-rutinoside chloride; Cyanidin 3-rutinoside chloride; Idaein chloride; Keracyanin; C3R; NSC 407296; 3-[[6-O-(6-Deoxy-α-L-mannopyranosyl)-β-D-glucopyranosyl]oxy]-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-1-benzopyrylium chloride
EINECS	Contact for details

Quality Control

Every batch of our Keracyanin Chloride is manufactured and tested under strict quality management systems. We provide comprehensive analytical data to ensure identity, purity, and consistency, supporting compliance with relevant research and industry standards. A detailed Certificate of Analysis (COA) including HPLC purity, spectral identification (UV-Vis, MS), and impurity profile is supplied with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under inert atmosphere (e.g., argon or nitrogen) for long-term stability. The product is light-sensitive and easily oxidized; allow the sealed vial to equilibrate to room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	Dark red to purple powder
Identification (HPLC)	Conforms to reference standard
Identification (UV-Vis)	Conforms to reference spectrum
Assay (HPLC)	≥95.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤1.0%
Heavy Metals (as Pb)	≤20 ppm
Solubility	Soluble in methanol, slightly soluble in water

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