25TFM-NBOMe (also known as NBOMe-2C-TFM, 2C-TFM-NBOMe, and Cimbi-138) is a derivative of the phenethylaminehallucinogen2C-TFM, discovered in 2004 by Ralf Heim at the Free University of Berlin.[1] It acts as a potent partial agonist for the 5-HT2Areceptor, though its relative potency is disputed, with some studies finding it to be of lower potency than 25I-NBOMe,[2][3] while others show it to be of similar or higher potency,[4] possibly because of differences in the assay used.[5] 2C-TFM-NB2OMe can be taken to produce psychedelic effects similar to 2C-I-NB2OMe and 2C-D-NB2OMe.
^Ettrup A, Hansen M, Santini MA, Paine J, Gillings N, Palner M, et al. (April 2011). "Radiosynthesis and in vivo evaluation of a series of substituted 11C-phenethylamines as 5-HT (2A) agonist PET tracers". European Journal of Nuclear Medicine and Molecular Imaging. 38 (4): 681–693. doi:10.1007/s00259-010-1686-8. PMID21174090. S2CID12467684.
^Hansen M (2010-12-16). Design and Synthesis of Selective Serotonin Receptor Agonists for Positron Emission Tomography Imaging of the Brain (Ph.D. thesis). University of Copenhagen. doi:10.13140/RG.2.2.33671.14245.