TCB-2
TCB-2, also known as 2CBCB or 2C-BCB, is a putative psychedelic drug of the phenethylamine, 2C, and benzocyclobutene families related to 2C-B. It is a cyclized phenethylamine and is the derivative of 2C-B in which the β position has been connected to the 6 position by a methylene bridge to form a benzocyclobutene ring system. It is unclear whether TCB-2 produces hallucinogenic effects in humans and its route of administration and properties such as dose and duration are unknown.