5-Hydroxy-3',4',6,7-tetramethoxyflavone 98% (CAS 21763-80-4) – High-Purity Polymethoxylated Flavonoid from Botanical Sources

🌿 Product Information

Product Name: 5-Hydroxy-3',4',6,7-tetramethoxyflavone
CAS No.: 21763-80-4
Molecular Formula: C₁₉H₁₈O₇
Molecular Weight: 358.34 g/mol
Appearance: Yellow to light-yellow crystalline powder
Specification: ≥98% (HPLC)

⚡️ Product Overview

5-Hydroxy-3',4',6,7-tetramethoxyflavone is a naturally derived polymethoxylated flavone commonly isolated from citrus-related botanical sources.
It is widely used as a research-grade flavonoid reference compound in natural product chemistry, phytochemical profiling, and analytical method development.

With high purity and stable physicochemical properties, this product is suitable for laboratory research, extraction studies, and early-stage formulation exploration.

Note: This product is intended for research and industrial R&D use only. Not for direct consumption or therapeutic applications.

✅ Key Features

• ≥98% purity verified by HPLC

• Polymethoxylated flavone with defined structure

• Plant-derived compound with consistent quality

• Stable crystalline powder, suitable for long-term storage

• Applicable for analytical reference and R&D formulation screening

• Non-GMO, non-irradiated, no animal-derived components

⚙️ Technical Specifications

🧪 Application Fields

🔬 Research Applications

• Reference standard in flavonoid and polymethoxyflavone analysis

• Used in phytochemical studies and botanical fingerprinting

• Applied in HPLC / LC-MS method development

• Raw material for laboratory-scale formulation screening

🏭 Industrial R&D

• Ingredient for early-stage cosmetic formulation research

• Botanical compound for nutraceutical prototype evaluation

• Used in citrus flavonoid extraction and purification optimization

Disclaimer: Not approved as a food ingredient, cosmetic ingredient, or pharmaceutical API.

📦 Packaging & Storage

Storage Conditions:
Store at 2–8°C, tightly sealed, protected from moisture and light.

🧪 Quality Verification

Identification

• MS: Molecular ion consistent with C₁₉H₁₈O₇

• FTIR: Characteristic flavone absorption bands

• NMR: ¹H / ¹³C NMR data available upon request

Purity Testing

• HPLC chromatogram (UV detection)

• Residual solvent analysis (GC)

• Heavy metals controlled within standard limits (Pb, Cd, As, Hg)

🚚 Logistics & Documentation

Shipping

• ≤500 g: Standard shipment

• ≥1 kg: Temperature-controlled shipment recommended

Documents Provided

• Certificate of Analysis (COA)

• HPLC Report

• MS / NMR Data

• Material Safety Data Sheet (MSDS)

• Technical Data Sheet (TDS)