5,6-diaminopyrimidin-4-ol; CAS No.: 1672-50-0; 5,6-diaminopyrimidin-4-ol. PROPERTIES: 5,6-diaminopyrimidin-4-ol is a pyrimidine derivative with molecular formula C4H6N4O. It typically appears as a white to off-white crystalline powder with a melting point ranging between 210-215 C. The compound exhibits moderate solubility in water and is slightly soluble in organic solvents like ethanol and dimethyl sulfoxide. Proper storage requires a tightly sealed container in a cool, dry place protected from light, as it may degrade upon exposure to moisture and UV radiation. Safety precautions include wearing protective clothing, gloves, and eye/face protection to prevent skin and eye irritation. In case of accidental inhalation, move to fresh air and seek medical attention if respiratory symptoms develop. When handling 5,6-diaminopyrimidin-4-ol, avoid contact with oxidizing agents and acidic substances. APPLICATIONS: 5,6-diaminopyrimidin-4-ol serves as a versatile intermediate in pharmaceutical synthesis, particularly in the development of antiviral and anticancer agents. Its diaminopyrimidine structure allows for easy functionalization, making it valuable for creating nucleoside analogs. In medicinal chemistry, it has been used to synthesize compounds targeting viral polymerases, as documented in several medicinal chemistry journals. Additionally, this compound acts as a building block for agrochemicals, though non-agricultural applications are emphasized here. Its role in organic synthesis is highlighted in specialized chemical databases focusing on heterocyclic compounds.