N-Ethyl-2C-B, also known as 2C-B-E, is a recreational designer drug with psychedelic effects. It was first synthesised in the 1990s, and was first identified as a new psychoactive substance in Finland in 2007. It is specifically listed as an illegal drug in Finland, and controlled under analogue provisions in a number of other jurisdictions. The drug is a potent serotonin 5-HT<sub>2A</sub> receptor full agonist, with an of 3.39nM and an of 106%. It is a controlled substance in Canada under phenethylamine blanket-ban language.