Description

Quercetin-3,5,7,3',4'-Pentamethyl Ether is a fully methylated derivative of the flavonoid quercetin, characterized by its 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 intermediate for researchers and manufacturers in the pharmaceutical, nutraceutical, and advanced material sectors.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and purity testing of flavonoid-based drugs and supplements in analytical laboratories.
• Biochemical Research: Acts as a critical tool compound for studying the structure-activity relationships (SAR) of flavonoids, their metabolism, and biological pathways.
• Nutraceutical Ingredient Development: Serves as a stable intermediate or precursor in the synthesis of advanced dietary supplements and functional food additives.
• Cosmetic Science: Investigated for potential use in premium skincare formulations due to its modified antioxidant properties and stability profile.
• Organic Synthesis Intermediate: Utilized in chemical synthesis to create novel flavonoid derivatives with tailored properties for various industrial applications.

Basic Information

Product Name	Quercetin-3,5,7,3',4'-Pentamethyl Ether
CAS No.	1247-97-8
Molecular Formula	C₂₀H₂₀O₇
Molecular Weight	372.37 g/mol
Synonyms	3,5,7,3',4'-Pentamethoxyflavone; 3,3',4',5,7-Pentamethoxyflavone; Quercetin Pentamethyl Ether; 2-(3,4-Dimethoxyphenyl)-3,5,7-trimethoxy-4H-chromen-4-one; 3,5,7-Trimethoxy-2-(3,4-dimethoxyphenyl)-4-benzopyrone; PMF (Pentamethoxyflavone); Pentamethylquercetin
EINECS	Contact for details

Quality Control

Our Quercetin-3,5,7,3',4'-Pentamethyl Ether is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container sealed to protect from moisture.

Specification

Item	Specification
Appearance	Yellow to light yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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