Definition: Isooctane (also known as octanoic acid) is a type of fatty acid that has a molecular formula of C8H18O. It's a common compound found in various foods, such as oil and butter. Isooctane is composed of carbon, hydrogen, and oxygen atoms. The number of each atom in the molecule is 3:1 (carbon to hydrogen) and 2:1 (oxygen to hydrogen). Isooctane has an