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December 2025
Oroxylin A (CAS: 480-11-5), also known as 5,7-dihydroxy-6-methoxyflavone, is a naturally occurring flavonoid predominantly found in Scutellaria baicalensis (Huang Qin) and related botanical species. Due to its clearly defined molecular structure and strong relevance in flavonoid profiling, Oroxylin A has become an important reference compound in phytochemical research, analytical testing, and ingredient development.
At Nanjing Spring & Autumn Biological Engineering Co., Ltd., we supply Oroxylin A ≥98% (HPLC) with strict quality control and complete technical documentation. This high-purity material is widely used by universities, research laboratories, cosmetic raw material developers, and natural product research institutions worldwide.
Oroxylin A is a methoxylated flavone characterized by two hydroxyl groups and one methoxy group on the flavonoid backbone. This structural feature contributes to its stability and makes it highly suitable for analytical identification, comparative flavonoid studies, and formulation research.
Typical applications include:
Natural product identification and profiling
Reference standard for flavonoid analysis
Quality control of Scutellaria and related botanical extracts
Comparative flavonoid composition studies
Ingredient research and formulation development
⚠️ This product is intended strictly for scientific research, laboratory analysis, and ingredient R&D. It is not intended for direct consumption or medical use.
| Item | Detail |
|---|---|
| Product Name | Oroxylin A |
| CAS Number | 480-11-5 |
| Molecular Formula | C₁₆H₁₂O₅ |
| Molecular Weight | 284.26 g/mol |
| Appearance | Yellow to light-yellow crystalline powder |
| Purity | ≥98% (HPLC) |
| Botanical Source | Scutellaria baicalensis |
Each batch of Oroxylin A is tested by HPLC to ensure ≥98% purity, providing reliable performance for analytical and research applications.
Extracted and purified from plant sources using controlled processes to ensure batch-to-batch consistency and reproducibility.
Fine crystalline powder with good stability when stored at 2–8°C, protected from light.
Every shipment is supported with a full documentation package, including:
Certificate of Analysis (COA)
HPLC Chromatogram
MS & NMR Spectra
MSDS
Technical Data Sheet (TDS)
Oroxylin A is widely used in the structural analysis and comparative study of flavonoids derived from Scutellaria species and other medicinal plants.
Suitable for method establishment and validation, including:
HPLC
LC-MS/MS
UV-Vis analysis
Chromatographic fingerprinting
Used as a marker compound for quality evaluation and standardization of botanical extracts containing methoxylated flavones.
Applied in cosmetic raw material research to evaluate formulation behavior, stability, and compatibility in plant-based ingredient systems.
| Parameter | Specification |
|---|---|
| Purity | ≥98% (HPLC) |
| Melting Point | 205–210°C (typical) |
| Solubility | Soluble in DMSO, ethanol |
| Storage | 2–8°C, protected from light |
| Shelf Life | 36 months |
| Packaging Size | Recommended Use |
|---|---|
| 10 g | Analytical or preliminary research |
| 25 g | Laboratory research projects |
| 100 g | Pilot-scale R&D |
| 500 g – 1 kg | Industrial formulation research |
All products are packed in sealed, moisture-protective containers to ensure stability during transportation and storage.
Strict Quality Control
Comprehensive in-house and third-party testing ensures consistent quality and analytical reliability.
Complete Technical Support
Full documentation including COA, HPLC, MS, and NMR data is provided with each batch.
Stable & Reliable Supply
Long-term production capacity and inventory management ensure continuous global supply.
Flexible Packaging Solutions
From gram-level samples to kilogram-scale orders, customized packaging is available.
Worldwide Shipping
Professional export documentation and temperature-controlled logistics for international customers.
Oroxylin A (CAS: 480-11-5) is a high-value, research-grade flavonoid extensively used in phytochemical studies, botanical extract analysis, and ingredient development. With ≥98% purity, stable quality, and comprehensive analytical documentation, Nanjing Spring & Autumn Biological Engineering Co., Ltd. remains a trusted global supplier of premium natural compounds.
📩 For quotations, technical documents, or sample requests, please feel free to contact us at any time.
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