Description

5-Hydroxy-2′,3,4′,7-Tetramethoxyflavone is a specialized polymethoxylated flavonoid derivative, a compound class known for its significant biological activity and research utility. This high-purity reference standard is critical for ensuring analytical accuracy and reproducibility in scientific studies. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, nutraceutical, and life science sectors for method development, quality control, and bioactivity screening.

Application

• Pharmaceutical Reference Standard: Used for the identification, assay, and purity testing of flavonoid-based drug candidates and natural product extracts in HPLC, LC-MS, and NMR analysis.
• Biochemical Research: Serves as a key intermediate or active compound in studies investigating anti-inflammatory, antioxidant, and neuroprotective mechanisms.
• Natural Product Chemistry: Employed as a chromatographic marker for the standardization and authentication of complex botanical preparations containing polymethoxylated flavones.
• Academic & Institutional Research: Essential for universities and R&D labs conducting structure-activity relationship (SAR) studies to develop new therapeutic agents.
• Cosmeceutical Development: Investigated for potential application in advanced skincare formulations targeting oxidative stress and inflammation.

Basic Information

Product Name	5-Hydroxy-2′,3,4′,7-Tetramethoxyflavone
CAS No.	19056-75-8
Molecular Formula	C₁₉H₁₈O₇
Molecular Weight	358.34 g/mol
Synonyms	5-Hydroxy-2',3,4',7-tetramethoxyflavone; 5-Hydroxy-2',3,4',7-tetramethoxyflavone; 2',3,4',7-Tetramethoxy-5-hydroxyflavone; 5-Hydroxy-2',3,4',7-tetramethoxyflavone (CAS 19056-75-8); Flavone, 5-hydroxy-2',3,4',7-tetramethoxy-; NSC 407340; 19056-75-8
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-2′,3,4′,7-Tetramethoxyflavone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis. A detailed Certificate of Analysis (COA) is provided with every shipment, ensuring traceability and compliance with research-grade specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container should be kept in a desiccated environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residual Solvents (GC)	Complies with ICH guidelines

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