Nitrobenzene is an organic compound with the chemical formula C6H5NO2. It consists of a benzene ring with one nitro group (-NO2) attached. Nitrobenzene is a pale yellow liquid that has a sweet, almond-like odor. It is primarily used as a solvent and in the production of aniline, which is important for making dyes and pharmaceuticals. Nitrobenzene is produced by the nitration of benzene, typically using a mixture of concentrated nitric and sulfuric acids. While it has industrial applications, nitrobenzene is toxic and can be harmful if inhaled or ingested. Proper safety measures are essential when handling this chemical.