Hexacosane is a straight-chain alkane with the chemical formula C26H54. It consists of 26 carbon atoms and is part of the alkane family, which are saturated hydrocarbons. Hexacosane is a colorless, odorless solid at room temperature and is commonly found in petroleum and natural waxes. This compound is often used in scientific research and industrial applications, including as a standard in gas chromatography. Hexacosane has a high melting point and low solubility in water, making it useful in various formulations, such as cosmetics and lubricants.