Ethanol is an organic compound with the chemical formula $\text{C}_2\text{H}_5\text{OH}$. It is a colorless, volatile liquid widely utilized for its solvent properties in various chemical processes and industries. Chemically, it is categorized as a primary alcohol. In biological systems, ethanol can be metabolized by various microorganisms and larger organisms, a process that involves complex enzymatic pathways. Furthermore, due to its energy content when combusted, it serves as a common component in fuels for internal combustion engines. Its relative volatility makes it useful in applications ranging from chemical extraction to antiseptic formulations.