Description

Quercetin 3,5,3'-Trimethyl Ether is a specific, methylated derivative of the flavonoid quercetin, offering enhanced stability and distinct biological properties compared to its parent compound. This high-purity chemical is critical for research and development in advanced life science applications where precise molecular structure and consistent performance are paramount. It is primarily sought by manufacturers and researchers in the pharmaceutical, nutraceutical, and cosmetic industries for its role as a key intermediate or active ingredient.

Application

• Pharmaceutical Research & Development: Serves as a reference standard, a key intermediate in synthesizing novel drug candidates, and a tool for studying structure-activity relationships of flavonoid-based therapeutics.
• Nutraceutical & Dietary Supplement Formulation: Used as a potent, bioavailable active ingredient in advanced supplements targeting oxidative stress and inflammation.
• Cosmetic & Skincare Actives: Incorporated into high-end formulations for its potential antioxidant and skin-protective properties, contributing to anti-aging and UV-protection claims.
• Biochemical & Life Science Research: Essential for in-vitro and in-vivo studies investigating cellular pathways, enzyme inhibition, and the biological effects of methylated flavonoids.
• Analytical Chemistry: Employed as a certified reference material (CRM) for method development, calibration, and quality control in HPLC, LC-MS, and other analytical techniques.

Basic Information

Product Name	Quercetin 3,5,3'-Trimethyl Ether
CAS No.	13459-09-1
Molecular Formula	C₁₈H₁₆O₇
Molecular Weight	344.32 g/mol
Synonyms	3,5,3'-Tri-O-methylquercetin; 3,5,7-Trihydroxy-3',4'-dimethoxyflavone; 5,7-Dihydroxy-3,3',4'-trimethoxyflavone; Quercetin 3,5,3'-trimethyl ether; Tamarixetin 3,5-dimethyl ether; 3,3',4',5,7-Pentahydroxyflavone 3,5,3'-trimethyl ether; 4H-1-Benzopyran-4-one, 5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6-dimethoxy-
EINECS	Contact for details

Quality Control

Our Quercetin 3,5,3'-Trimethyl Ether is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting standards for research and production. Certificates of Analysis (COA) with full traceability are provided for all shipments, and we can support compliance with GMP, ICH guidelines, and REACH requirements as needed.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥95.0%
Loss on Drying	≤2.0%
Residue on Ignition	≤0.5%
Heavy Metals	≤20 ppm

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