Description

5-Hydroxy-7,8,2',3',4'-Pentamethoxyflavone is a polymethoxylated flavonoid derivative, a compound class known for its significant biological activity and utility as a key reference standard. This high-purity compound is essential for research and development, providing a reliable benchmark for analytical and pharmacological studies. It is primarily used by researchers and quality control laboratories in the pharmaceutical, nutraceutical, and phytochemical industries.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and purity testing of flavonoid-based drug substances and finished products.
• Biochemical Research: Serves as a critical tool in studying enzyme inhibition, antioxidant mechanisms, and cellular signaling pathways.
• Natural Product Analysis: Acts as a chromatographic standard for the quantification of polymethoxylated flavonoids in complex plant extracts and herbal formulations.
• Nutraceutical Development: Employed in the standardization and quality assurance of dietary supplements containing bioactive flavonoids.
• Academic Research: Utilized in universities and research institutes for investigating structure-activity relationships (SAR) of flavonoid compounds.

Basic Information

Product Name	5-Hydroxy-7,8,2',3',4'-Pentamethoxyflavone
CAS No.	21315-67-3
Molecular Formula	C₂₀H₂₀O₈
Molecular Weight	388.37 g/mol
Synonyms	5-Hydroxy-7,8,2',3',4'-pentamethoxyflavone; 5-Hydroxypentamethoxyflavone; 3',4',5,7,8-Pentamethoxyflavone; 5-Hydroxy-3',4',7,8,2'-pentamethoxyflavone; NSC 407347; Flavone, 5-hydroxy-7,8,2',3',4'-pentamethoxy-
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-7,8,2',3',4'-Pentamethoxyflavone is manufactured under strict quality control protocols to ensure high purity and batch-to-batch consistency, suitable for research and analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry guidelines for reference standard 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 product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.2%

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