Ergothioneine (CAS: 497-30-3)‌

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Ergothioneine (CAS: 497-30-3)‌ is a naturally occurring antioxidant with the chemical formula C9H15N3O2S and a molecular weight of 229.3. It appears as white crystalline powder with a melting point of 275-277°C (dec.) and is widely used in cosmetics, pharmaceuticals, and dietary supplements due to its potent free-radical scavenging properties and ability to chelate heavy ions.Recognized for its low toxicity and cellular protective effects, it stabilizes at high concentrations in biological systems without oxidation

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