Description

Theasinensin C is a dimeric catechin derivative belonging to the class of theasinensins, which are unique polyphenolic compounds formed during the fermentation of tea leaves. This compound is of significant interest for its potent biological activities, particularly its antioxidant and anti-inflammatory properties, which are often superior to those of monomeric catechins. It is primarily sought by researchers and product developers in the nutraceutical, cosmetic, and pharmaceutical industries for applications in functional food formulations, dietary supplements, and advanced skincare products.

Application

• Nutraceutical & Dietary Supplements: As a key bioactive ingredient in formulations targeting oxidative stress, metabolic health, and anti-aging benefits.
• Cosmetic & Skincare Products: Incorporated into serums, creams, and lotions for its strong antioxidant and potential anti-photoaging effects to protect and rejuvenate skin.
• Pharmaceutical Research: Serves as a reference standard or active pharmaceutical ingredient (API) intermediate in preclinical studies for inflammation-related disorders.
• Functional Food & Beverages: Used to enhance the health profile of teas, health drinks, and fortified food products.
• Analytical Reference Standard: Employed in quality control laboratories for the identification and quantification of theasinensins in tea extracts and finished products via HPLC or LC-MS.
• Biochemical Research: Utilized in studies investigating the mechanisms of polyphenol metabolism, bioavailability, and structure-activity relationships.

Basic Information

Product Name	Theasinensin C
CAS No.	89013-69-4
Molecular Formula	C₄₄H₃₄O₂₂
Molecular Weight	914.74 g/mol
Synonyms	Theasinensin C; Theasinensin C (Tea Polyphenol); (-)-Theasinensin C; Theaflavin-like polyphenol; Tea catechin dimer C; Epigallocatechin gallate dimer; EGCG dimer; 3-O-Galloylepicatechin-(4β→8, 2β→O→7)-epigallocatechin gallate
EINECS	Contact for details

Quality Control

Our Theasinensin C is produced and tested under stringent quality management systems. Each batch is analyzed to ensure high purity and consistency, with specifications typically meeting or exceeding research-grade standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles via HPLC is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) to minimize oxidation and degradation. The material is hygroscopic and light-sensitive; prolonged exposure to air, moisture, or light should be avoided.

Specification

Item	Specification
Appearance	Light brown to brown powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Solubility	Soluble in methanol, acetone, DMSO; slightly soluble in water

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