Benzene is classed as an aromatic hydrocarbon used mainly as an intermediate to make other chemicals such as ethylbenzene and cumene. and it is used to make styrene, polymers, plastics, resins, and nylon. Because it has a high octane number, it is a component of gasoline. Smaller amounts of benzene are used to make some types of rubbers, lubricants, dyes, and pesticides.

Toluene or methyl benzene, is an aromatic hydrocarbon. The major use of Toluene is as a solvent in paints, glues, rubbers, lacquers, thinners, leather and nail polish remover, paper coating, silicone sealants, foam and manufacture of TNT. Toluene can be used as an octane booster in gasoline fuels used in internal combustion engines. and it also be used as precursor in the processes of manufacture of organic chemical synthesis such as Benzene, Xylene and Phenol.