Azobenzene :: Azobenzene (n.) A substance (C6H5.N2.C6H5) derived from nitrobenzene, forming orange red crystals which are easily fusible..
Benzene :: Benzene (n.) A volatile, very inflammable liquid, C6H6, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes applied also to the impure commercial product or benzole, and also, but rarely, to a similar mixed product of petroleum..
Nitrobenzene :: Nitrobenzene (n.) A yellow aromatic liquid (C6H5.NO2), produced by the action of nitric acid on benzene, and called from its odor imitation oil of bitter almonds, or essence of mirbane. It is used in perfumery, and is manufactured in large quantities in the preparation of aniline. Fornerly called also nitrobenzol..
Oxybenzene :: Oxybenzene (n.) Hydroxy benzene. Same as Phenol.