Description

5,4'-Dihydroxy-3,6,7,8,3'-Pentamethoxyflavone is a polymethoxylated flavonoid derivative, a compound class recognized for its significant biological activity and utility in advanced research. This high-purity reference standard is critical for ensuring analytical accuracy and reproducibility in scientific studies. It is primarily sought by researchers and developers in the pharmaceutical, nutraceutical, and life science industries for applications in drug discovery, metabolic pathway analysis, and the development of analytical methods.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material (CRM) for the identification, assay, and impurity profiling of flavonoid-based drugs and herbal extracts in HPLC, LC-MS, and other analytical techniques.
• Bioactivity Research: Serves as a key intermediate or active compound in studies investigating antioxidant, anti-inflammatory, anticancer, and neuroprotective properties.
• Natural Product Chemistry: Employed as a benchmark for the isolation, characterization, and quantification of similar flavonoids from complex botanical matrices.
• Nutraceutical & Cosmetic Development: Acts as a standard for quality control in the formulation of high-value dietary supplements and cosmeceutical products claiming flavonoid content.
• Academic & Institutional Research: Utilized in universities and research institutes for fundamental studies on flavonoid biosynthesis, metabolism, and structure-activity relationships (SAR).

Basic Information

Product Name	5,4'-Dihydroxy-3,6,7,8,3'-Pentamethoxyflavone
CAS No.	50439-47-9
Molecular Formula	C₂₀H₂₀O₉
Molecular Weight	404.37 g/mol
Synonyms	5,4'-Dihydroxy-3,6,7,8,3'-pentamethoxyflavone; 3,6,7,8,3'-Pentamethoxy-5,4'-dihydroxyflavone; 5-Hydroxy-3,6,7,8,3',4'-hexamethoxyflavone (tautomer); Gardenin D; 5-Desmethylsinensetin; Polymethoxyflavone PMF; Flavonoid 50439-47-9
EINECS	Contact for details

Quality Control

Our 5,4'-Dihydroxy-3,6,7,8,3'-Pentamethoxyflavone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (IR, NMR, MS), to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and analytical results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider keeping under an inert atmosphere (e.g., nitrogen or argon) in a sealed container.

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%
Heavy Metals (as Pb)	≤ 20 ppm

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