Flubromazepam is the name used for a benzodiazepine derivative which was first made in 1960, but was never marketed and did not receive any further attention or study until it started to be sold as a research chemical in late 2012. It's closest relative is phenazepam. Replacing the 2'Cl with a 2'F is the single alteration. Flubromazepam is currently being studied. It presumably has sedative,hypnotic,muscle relaxant & antiepileptic effects common to all benzodiazepine derivatives. A closely related compound; 5-(2-Fluorophenyl)-7-bromo-1,3-dihydro-2H-1,4-benzodiazepin-2-one, also appears to have been sold under the same name. Its onset is around 4 hours and reaches its peak at 8 hours.