BK-6-MAPB
βk-6-MAPB, or BK-6-MAPB, also known as NM-PrBF6 or as 6-benzofuran, is a putative entactogen of the benzofuran and cathinone groups. It was patented by Matthew Baggott and Tactogen. The drug is known to act as a potent serotonin releasing agent. In addition, unlike MDMA, it is a potent serotonin 5-HT1B receptor agonist. βk-6-MAPB was encountered as a novel designer drug online in 2019.