9,10-Dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

2C-B is a psychedelic compound in the phenethylamine and 2C families, used recreationally for its hallucinogenic, mild stimulant, and mild entactogenic effects. It is typically taken orally and is also known by names such as Nexus or Erox.