Reference standard for [¹¹C]FEAU and [¹⁸F]FEAU (2'-[¹⁸F]fluoro-5-ethyl-1-β-D-arabinofuranosyluracil)/(2'-fluoro-5-[¹¹C]ethyl-1-β-D-arabinofuranosyluracil)

1-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyluracil; 1-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-2,4(1H,3H)-pyrimidinedione; 1-(2-Deoxy-2-fluoro-arabinofuranosyl)-5-ethyluracil; 2'-Fluoro-5-ethyl-arabinosyluracil; 2'-Fluoro-5-ethyl-β-D-arabinofuranosyluracil; 1-[(2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-ethylpyrimidine-2,4-dione; 5-Ethyl-1-[(2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione; 5-Ethyl-1-(2-fluoro-2-deoxy-β-D-arabinofuranosyl)uracil; 1-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-5-ethyl-2,4(1H,3H)-pyrimidinedione; β-FEAU; β-D-FEAU