Icosane is a straight-chain hydrocarbon with the chemical formula C20H42. It belongs to the group of alkanes, which are saturated hydrocarbons consisting only of carbon and hydrogen atoms. Icosane is a solid at room temperature and is typically found in the form of white, waxy crystals. It is part of the alkane series and is known for its high melting point compared to shorter-chain alkanes. This compound is often used in various industrial applications, including the production of wax and as a component in certain types of lubricants. Icosane can also be found in some natural sources, such as certain types of plant waxes. Its properties make it useful in both chemical research and practical applications.