Benzocycloheptene
（重定向自Dibenzocycloheptenes）
Benzocycloheptenes are cycloheptenes with additional benzene rings attached. Most have two benzene rings, and are called "dibenzocycloheptenes".
Some benzocycloheptenes and substituted benzocycloheptenes have medical uses as antihistamines, anticholinergics, antidepressants, antiserotonergics.