5-MAPBT
5-MAPBT, also known as 5-(2-(methylamino)propyl)-1-benzothiophene, is a possible entactogen of the phenethylamine, amphetamine, and benzothiophene families. It is closely related to 5-MAPB, but with the oxygen atom replaced by sulfur, changing the core ring structure to benzothiophene rather than benzofuran.