Benzene
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Colorless liquid hydrocarbon C6H6, with one ring of carbon atoms. Made from coal tar and by catalytic reforming of naphthyenes, it is used in the manufacture of phenol, styrene, nylon, detergents, aniline, phthalic anhydride, biphenyl, nitrobenzene, chlorbenzene; as a solvent; and as a component of high-octane gasoline.