Oroxylin A 98% (CAS: 480-11-5): A Premium Flavonoid for Research, Analysis & Ingredient Development December 2025 Introduction 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. What Is Oroxylin A? 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. Chemical Information Item Detail Product Name Oroxylin A CAS Number 480-11-5 Molecular Formula C??H??O? Molecular Weight 284.26 g/mol Appearance Yellow to light-yellow crystalline powder Purity ≥98% (HPLC) Botanical Source Scutellaria baicalensis Product Characteristics High Research-Grade Purity Each batch of Oroxylin A is tested by HPLC to ensure ≥98% purity, providing reliable performance for analytical and research applications. Natural Botanical Origin Extracted and purified from plant sources using controlled processes to ensure batch-to-batch consistency and reproducibility. Stable & Laboratory-Friendly Fine crystalline powder with good stability when stored at 2–8°C, protected from light. Complete Technical Documentation Every shipment is supported with a full documentation package, including: Certificate of Analysis (COA) HPLC Chromatogram MS & NMR Spectra MSDS Technical Data Sheet (TDS) Applications in Research and Industry 1. Phytochemical & Flavonoid Research Oroxylin A is widely used in the structural analysis and comparative study of flavonoids derived from Scutellaria species and other medicinal plants. 2. Analytical Method Development Suitable for method establishment and validation, including: HPLC LC-MS/MS UV-Vis analysis Chromatographic fingerprinting 3. Botanical Extract Standardization Used as a marker compound for quality evaluation and standardization of botanical extracts containing methoxylated flavones. 4. Cosmetic Ingredient R&D Applied in cosmetic raw material research to evaluate formulation behavior, stability, and compatibility in plant-based ingredient systems. Technical Specifications 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 Options 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. Why Choose Nanjing Spring & Autumn Biological Engineering Co., Ltd.? Strict Quality ControlComprehensive in-house and third-party testing ensures consistent quality and analytical reliability. Complete Technical SupportFull documentation including COA, HPLC, MS, and NMR data is provided with each batch. Stable & Reliable SupplyLong-term production capacity and inventory management ensure continuous global supply. Flexible Packaging SolutionsFrom gram-level samples to kilogram-scale orders, customized packaging is available. Worldwide ShippingProfessional export documentation and temperature-controlled logistics for international customers. Conclusion 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.