2C-B-morpholine
2C-B-morpholine, also known as 2C-B-norphenmetrazine or as 2-(4-bromo-2,5-dimethoxyphenyl)morpholine, is a serotonin receptor modulator of the phenylmorpholine (phenmetrazine) and cyclized phenethylamine groups. It is a ligand of the serotonin 5-HT2A receptor, with an affinity of 20.6 nM and an EmaxTooltip maximal efficacy of 4%.