Nitrobenzene is an organic compound with the chemical formula C6H5NO2. It is a pale yellow liquid that has a sweet, almond-like odor. Nitrobenzene is primarily used in the production of aniline, which is an important precursor for dyes, plastics, and pharmaceuticals. It is produced by the nitration of benzene using a mixture of concentrated nitric and sulfuric acids. Due to its chemical properties, nitrobenzene is also used as a solvent and in the manufacture of explosives. However, it is toxic and poses health risks, including potential effects on the nervous system. Proper safety measures are essential when handling this compound.