Overview
Polygala xanthone is a bioactive xanthone derivative extracted from the roots of Polygala tenuifolia, a herb widely used in traditional Chinese medicine (TCM). It is recognized for its neuroprotective and anti-inflammatory effects, making it a valuable compound in modern pharmacology. The compound is often standardized for use in nootropic supplements and herbal formulations targeting cognitive health. Research indicates that Polygala xanthone modulates neurotransmitter activity and reduces oxidative stress in neural tissues. Its applications extend to treating neurodegenerative disorders, anxiety, and memory impairment. The compound is typically isolated through chromatographic techniques, with purity levels critical for efficacy.
Physical and Chemical Properties
Polygala xanthone is a pale yellow crystalline powder with a molecular weight of 458.42 g/mol. It exhibits moderate solubility in organic solvents like ethanol and methanol but has limited solubility in water. The compound’s melting point ranges between 180-185°C, and it is stable under recommended storage conditions. Key chemical features include a xanthone core structure with hydroxyl and methoxy functional groups, which contribute to its antioxidant activity. Spectroscopic methods (e.g., NMR, HPLC) are used to confirm its identity and purity. Stability testing recommends protection from light and moisture to prevent degradation.
Main Applications
In the pharmaceutical industry, Polygala xanthone is incorporated into formulations for cognitive enhancement and neuroprotection. It is a key ingredient in TCM remedies for insomnia and stress-related conditions. Nutraceutical companies utilize it in brain health supplements, often combined with other nootropics like ginkgo biloba. The compound’s anti-inflammatory properties also make it a candidate for research in treating chronic inflammatory diseases. Emerging studies explore its potential in oncology due to its ability to inhibit certain signaling pathways. B2B buyers typically source it for R&D or bulk production of herbal extracts.
Safety and Storage
Polygala xanthone should be handled with standard laboratory precautions, including gloves and eye protection. While it is generally low in toxicity, prolonged exposure to dust may cause respiratory irritation. Proper ventilation is advised during handling. Storage requires airtight containers in a cool (below 25°C), dark environment to prevent oxidation. Shelf life is approximately two years when stored correctly. For large-scale procurement, suppliers should provide material safety data sheets (MSDS) and batch-specific stability data.
B2B Procurement Guide
When sourcing Polygala xanthone, prioritize suppliers with ISO or GMP certification to ensure quality consistency. Request detailed documentation, including HPLC purity reports (typically ≥98%), residual solvent analysis, and heavy metal testing. Bulk pricing is often negotiable for orders above 100 grams. Logistics should account for temperature-controlled shipping to maintain stability. For international procurement, verify compliance with regional regulations (e.g., FDA, EMA). Sample testing is recommended before large purchases to confirm adherence to specifications.
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