The molecule consists of a benzene ring substituted with a bromomethyl group.

[3][4] Benzyl bromide can be synthesized by the bromination of toluene under conditions suitable for a free radical halogenation: The structure has been examined by electron diffraction.

[3] In some cases, benzyl serves as protecting group for alcohols and carboxylic acids.

[8] Benzyl bromide is a strong lachrymator and is also intensely irritating to skin and mucous membranes.

Because of these properties, it has been used in chemical warfare, both in combat and in training due to its irritating yet non-lethal nature.