4C-B
4C-B, also known as 4C-DOB or DOB-B, as well as 4-bromo-2,5-dimethoxy-α-ethylphenethylamine, is a lesser-known psychedelic drug of the phenethylamine, phenylisobutylamine, and 4C families related to 2C-B (the 2C analogue) and DOB (the DOx analogue). It is briefly mentioned in Alexander Shulgin's 1991 book PiHKAL (Phenethylamines I Have Known And Loved), but was never tested by Shulgin.