Small molecules & peptides


Reference standard for (R)-[¹⁸F]FETO ((R)-[¹⁸F]fluoroethyletomidate)

(R)-1-(1-Phenylethyl)-1H-imidazole-5-carboxylic acid, 2-fluoro ethyl ester; FETO

CA index name: 1H-Imidazole-5-carboxylic acid, 1-[(1R)-1-phenylethyl]-, 2-fluoroethyl ester


Research Chemical


Molar mass 262.28

CAS RN [960403-07-0]

Purity ≥ 95 %

  • Yellowish oil or solid


CoA: appearance, ¹H and ¹⁹F NMR spectra


Mitterhauser M. et al. In vivo and in vitro evaluation of [¹⁸F]FETO with respect to the adrenocortical and GABAergic system in rats. Eur. J. Nucl.Med. Mol. Imaging 2003, 30, 1398–1401.

Ettlinger D.E. et al. [¹⁸F]FETO: metabolic considerations. Eur. J. Nucl.Med. Mol. Imaging 2006, 33, 928–931.

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