What is "iodobenzene"

n. (context organic compound English) Any iodinated derivative of benzene, but especially the mono-substitution compound C₆H₅I that is used in organic synthesis

Iodobenzene is an organoiodine compound consisting of a benzene ring substituted with one iodine atom. It is useful as a synthetic intermediate in organic chemistry. It is a volatile colorless liquid, although aged samples appear yellowish.