Small molecules & peptides


Precursor for [¹⁸F]FB (4-[¹⁸F]fluorobenzoic acid)

4-tert-Butoxycarbonylmethyl-phenyl)-trimethyl-ammonium; trifluoro-methanesulfonate; tert.-Butyl 4-N,N,N-trimethylammoniumbenzoate triflate; Benzenaminium, 4-[(1,1-dimethylethoxy)carbonyl]-N,N,N-trimethyl-, salt with trifluoromethanesulfonic acid (1:1)

CA index name: Benzenaminium, 4-[(1,1-dimethylethoxy)carbonyl]-N,N,N-trimethyl-, 1,1,1-trifluoromethanesulfonate (1:1)


Research Chemical


Molar mass 385.40

CAS RN [660845-84-1]

Purity ≥ 95 %

  • Colorless solid


CoA: appearance, ¹H NMR spectrum


Wüst F. et al. Radiolabelling of isopeptide Nε(γ-glutamyl)-L-lysine by conjugation with N-succinimidyl-4-[¹⁸F]fluorobenzoate. Appl. Radiat. Isot. 2003, 59, 43–48.

Maeding P. et al. Module-assisted synthesis of the bifunctional labelling agent N-succinimidyl 4-[¹⁸F]fluorobenzoate ([¹⁸F]SFB). Appl. Radiat. Isot. 2005, 63, 329–332.

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