Toluene is a chemical compound that is commonly referred to as methylbenzene or toluol. This clear, colorless liquid is often used as a solvent in various industrial and consumer applications. Toluene can also be found in gasoline, where it is used as an octane booster. In addition to these commonly used names, toluene has several synonyms that can be used interchangeably. These synonyms include phenylmethane, methyl phenyl, and toluolene. Researchers and chemists may also refer to toluene as 1-methylbenzene or benzyl hydride. Regardless of the name used, toluene is an important chemical compound that plays a significant role in various industries.