Octacosane is a long-chain hydrocarbon with the chemical formula C28H58. It is part of the alkane family and consists of 28 carbon atoms and 58 hydrogen atoms. Octacosane is a solid at room temperature and is commonly found in natural waxes, such as beeswax and carnauba wax. This compound is often used in various applications, including cosmetics, lubricants, and as a component in certain types of fuels. Due to its high melting point, octacosane can also serve as a phase change material in thermal energy storage systems, helping to regulate temperature in various environments.