2F-MAR

{{Short description|Chemical compound}}

{{drugbox

| drug_name = 2'-Fluoro-4-methylaminorex

| image = 2'-F-4MAR_structure.png

| image_class = skin-invert-image

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| C = 10 | H = 11 | F = 1 | N = 2 | O = 1

| IUPAC_name = 4-methyl-5-(2-fluorophenyl)-4,5-dihydro-1,3-oxazol-2-amine

| CAS_number = none

| UNII =

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| PubChem =

| smiles = Fc1ccccc1C1OC(N)=NC1C

| StdInChI =

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2'-Fluoro-4-methylaminorex (2F-MAR, 2'-F-4-MAR) is a recreational designer drug from the substituted aminorex family, with stimulant effects, first reported in 2018.{{cite journal | vauthors = Maier J, Mayer FP, Brandt SD, Sitte HH | title = DARK Classics in Chemical Neuroscience: Aminorex Analogues | journal = ACS Chemical Neuroscience | volume = 9 | issue = 10 | pages = 2484–2502 | date = October 2018 | doi = 10.1021/acschemneuro.8b00415 | pmid = 30269490 | pmc = 6287711 }}