Description

Retusin 7,8-Dimethylether is a specific, high-purity flavonoid derivative, also known by its CAS number 37816-21-0. This compound is valued as a critical reference standard and research-grade biochemical for analytical and investigative applications. It is primarily required by pharmaceutical R&D laboratories, academic research institutions, and manufacturers of high-end analytical reagents.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of flavonoid-based compounds in drug development and quality control.
• Biochemical Research: Serves as a key intermediate or standard in studies investigating flavonoid metabolism, bioavailability, and biological activity.
• Analytical Chemistry: Employed as a calibration standard in chromatographic methods (HPLC, LC-MS) for method development and validation.
• Natural Product Isolation & Identification: Acts as a comparative marker for the identification and purification of related flavonoids from plant extracts.
• Academic & Institutional Research: Utilized in university and government labs for pharmacological and phytochemical studies.

Basic Information

Product Name	Retusin 7,8-Dimethylether
CAS No.	37816-21-0
Molecular Formula	C19H18O7
Molecular Weight	358.34 g/mol
Synonyms	Retusin 7,8-dimethyl ether; 5-Hydroxy-3,7-dimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one; 5-Hydroxy-3,7,4'-trimethoxyflavone; 3,7,4'-Tri-O-methylquercetin; 5-Hydroxy-3,7,4'-trimethoxyflavone; Retusin dimethyl ether
EINECS	Contact for details

Quality Control

Our Retusin 7,8-Dimethylether is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity, suitable for research and analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles, typically determined by HPLC, NMR, and MS. We support compliance with relevant pharmacopeial standards for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
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.