Tracer library / [18F]FBEM-Cys-H4

[18F]FBEM-Cys-H4

Also written as [18F]FBEM-Cys-H4; [F-18]FBEM-Cys-H4
Radionuclide
F-18 t½ 109.77 min
Modality
PET
Production route
—
Stage
Preclinical
Syntheses indexed
1

What it is

Compound class
Nanofitin (Sac7d-derived protein scaffold) labelled via cysteine-maleimide conjugation
Target / mechanism
hen egg white lysozyme PMID 28575696
Clinical application
—
Theranostic pair
—

Published syntheses

ModuleCassettePurificationYield %RCP %Precursor / supplierSource
FASTlab
GE HealthCare
—HPLC54±7%
decay-corrected
—Cys-H4 Nanofitin28575696
2017 Nucl Med Biol
The synthesis of [18F]FBEM has been completely implemented on a radiosynthesis unit (FastLab) including HPLC purification and formulation. - Radiochemical yield (decay corrected) of 54±7% (n=4) was obtained after optimization for coupling the [18F]FBEM to Nanofitin.

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Quality control Preliminary - inferred from compound class

Ph. Eur. monograph
not verified No Ph. Eur. check is recorded for this entry.
USP monograph
not verified No USP check is recorded for this entry.
AppearancepHRCP HPLCRCP TLCHPLC UVRadionuclidic (HPGe)Half-lifeActivityEndotoxins (LAL)SterilityFilter integrity
How this set was arrived at. base set per Ph. Eur. general monograph 0125 (rule); organic-phase radiosynthesis assumed from isotope/compound class, no synthesis data confirming it -> GC residual solvents (preliminary); conventional nucleophilic 18F-fluorination assumed from isotope/compound class, no synthesis data confirming K222 use -> Kryptofix test (preliminary)

Tests listed by reference only. Monograph texts are copyrighted and are not reproduced here. How these are derived

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Notes

Added from reverse module search (stage 6); 1 article(s) with F-18. Compound class inferred from precursor name (not stated outright) -- PMID 28575696: 'A single cysteine residue has been genetically inserted in a model Nanofitin and its regioselective radiolabelling has been performed with 4-[18F]fluorobenzamido-N-ethylamino-maleimide ([18F]FBEM).'. Stage set/updated at stage 39 from PMID 28575696: 'PET-MRI studies on C57BL/6 mice were conducted after injection of [18F]FBEM-Cys-H4 in order to access the biodistribution of this Nanofitin model.'.
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