<unk> , also known as nitrobenzol or oil of mirbane, is a poisonous organic compound with an almond odor and chemical formula C6H5NO2.  It may be found as either bright yellow crystals or an oily water-insoluble liquid.
It is used as a solvent and as a mild oxidizing agent. It is most frequently used specifically  in the manufacture of aniline, but also used in the manufacture of insulating compounds and polishes.
Nitrobenzene
Benzene
Vinyl chloride
Xylene
Toluene
Cyclohexane
Acetylene
Nitrazine