Melatonin is a hormone produced by the pineal gland. Melatonin is highly conserved and functions as a receptor-independent free radical scavenger and a broad-spectrum antioxidant. Melatonin is useful in preventing ischemia-reperfusion damage in the liver, brain, myocardium, gut and kidney.CAS No:73-31-4Synonyms:N-[2-(5-Methoxy-1H-indol-3-yl)ethyl]acetamide; 5-Methoxy-N-acetyltryptamine; Circadin; Melatol; Melatonine; Melovine; N-Acetyl-5-methoxytryptamine; N-[2-(5-Methoxyindol-3-yl)ethyl]acetamide; NSC 113928; NSC 56423; RegulinMDL No:MFCD00005655Chemical Formula:C₁₃H₁₆N₂O₂Molecular Weight:232.28Appearance:Supplied as a white to off-white crystalline powder.Purity:≥98% (HPLC)Loss on Drying:≤0.5%Melting Point: 117-120ºC Storage and Stability: May be stored at RT for short-term only. Long-term storage is recommended at RT. Stable for 6 months after receipt.