2C or 2C-x is the general name for a group of psychedelic compounds first synthesised by Alexander Shulgin in the 1970s and 80s. Not all of the 2C compounds are psychedelic, some of the most popular psychedelic compounds are 2C-B, 2C-E, and 2C-I. Several therapists explored 2C-x as therapeutic agents as they offered a middle road between the warm embrace of MDMA and the psychedelic effects of LSD; 2C-x are controlled substances in most countries, 2C-B is a schedule I drug in the US since 1995.