Description

(-)-Catechin CAS NO 18829-70-4 is a high-purity, naturally derived flavan-3-ol belonging to the polyphenol family, recognized for its potent antioxidant properties. This compound is essential for applications demanding precise stereochemistry and biological activity. It serves as a critical standard and active ingredient for the pharmaceutical, nutraceutical, and cosmetic industries, where its ability to neutralize free radicals and support cellular health is highly valued.

Application

• Pharmaceutical Reference Standard: Used as a primary standard for the identification, assay, and quality control of catechin-containing drugs and herbal extracts via HPLC and other analytical methods.
• Nutraceutical & Dietary Supplements: Incorporated into formulations for antioxidant support, cardiovascular health, and general wellness due to its free radical scavenging activity.
• Cosmetic & Skincare Ingredients: Utilized in anti-aging, protective, and brightening serums and creams for its antioxidant and potential collagen-stabilizing effects.
• Food & Beverage Research: Employed in studies on food preservation, flavor chemistry, and the health benefits of teas, wines, and cocoa.
• Biochemical Research: Serves as a key reagent and inhibitor in studies of enzyme kinetics, signal transduction pathways, and oxidative stress models.
• Natural Product Isolation & Synthesis: Acts as a benchmark compound for the extraction, purification, and chemical synthesis of related flavonoid compounds.

Basic Information

Product Name	(-)-Catechin
CAS No.	18829-70-4
Molecular Formula	C15H14O6
Molecular Weight	290.27 g/mol
Synonyms	(-)-Cianidanol; (-)-Catechinic acid; (-)-Catechuic acid; Cianidol; Catechin; (2R,3S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol; 3,3',4',5,7-Flavanpentol; L-Catechin; Catechinol
EINECS	242-608-1

Quality Control

Our (-)-Catechin is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, UV), to ensure it meets stringent specifications for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider keeping under an inert atmosphere. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Optical Rotation [α]20/D	-15° to -18° (c=1 in acetone)

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