Description

Quercetin-3,7,3',4'-Tetramethyl Ether is a specific, fully methylated derivative of the flavonoid quercetin, offering enhanced stability and lipophilicity compared to its parent compound. This chemical modification is crucial for applications requiring improved bioavailability and resistance to metabolic degradation. It serves as a valuable reference standard and key pharmaceutical intermediate for researchers and manufacturers in the nutraceutical, cosmetic, and life science sectors.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of flavonoid derivatives in drug development and quality control (QC) laboratories.
• Nutraceutical & Dietary Supplement Research: A key intermediate in the study and synthesis of advanced flavonoid-based supplements targeting antioxidant pathways.
• Cosmetic & Skincare Actives: Incorporated into formulations for anti-aging and protective skincare products due to its stabilized antioxidant properties.
• Biochemical Research: Employed in studies investigating the structure-activity relationships (SAR) of flavonoids and their biological effects.
• Organic Synthesis Intermediate: Serves as a building block for the synthesis of more complex, specialized flavonoid analogs.

Basic Information

Product Name	Quercetin-3,7,3',4'-Tetramethyl Ether
CAS No.	1245-15-4
Molecular Formula	C21H22O7
Molecular Weight	386.40 g/mol
Synonyms	3,7,3',4'-Tetramethoxyquercetin; 3,5,7-Trihydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,7,3',4'-tetramethoxy-4H-1-benzopyran-4-one; Quercetin Tetramethyl Ether; 3,3',4',5,7-Pentahydroxyflavone Tetramethyl Ether; Tamarixetin 3,7,3',4'-Tetramethyl Ether; NSC 407303; Quercetin 3,7,3',4'-tetramethyl ether
EINECS	Contact for details

Quality Control

Our Quercetin-3,7,3',4'-Tetramethyl Ether is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR, to ensure it meets the high standards required for research and development. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

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

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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