Tracers / [18F]JNJ64413739

[18F]JNJ64413739

Also written as F-18 JNJ64413739; F-18-JNJ64413739; JNJ64413739
Radionuclide
F-18 t½ 109.77 min
Modality
PET
Production route
Stage
Syntheses indexed
2

What it is

Compound class
P2X7 receptor imaging agent (nitropyridine-based small molecule)
Target / mechanism
Purinergic ion channel receptor 7 (P2X7R) PMID 39726781
Clinical application
Theranostic pair

Regulatory status

FDA
EMA (centralised)
Other approvals
Brand names

Clinical use

Typical injected activity
Uptake time

Reported in the literature. Not a dosing recommendation.

Published syntheses

ModuleCassettePurificationYield %RCP %Precursor / supplierSource
AllinOne (AiO)
Trasis
custom manifoldHPLC+SPE6.7% ± 3.8%
no
>97%(S)-(6-methyl-1-(pyrimidin-2-yl)-1,4,6,7-tetrahydro-5H-[1,2,3] triazolo [4,5-c] pyridin-5-yl) (3-nitro-2-(trifluoromethyl)pyridin-4-yl) methanone
In-house / non-commercial (various)
39726781
2024 Front Pharmacol
The radiosynthesis was conducted on an AllinOne synthesis module — non-decay-corrected radiochemical yield of 6.7% ± 3.8% (n = 3)
40535774
2025 Front Pharmacol

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Quality control Preliminary — inferred from compound class

Ph. Eur. monograph
USP monograph
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); 2 article(s) with F-18. Compound class inferred from precursor name (not stated outright) -- PMID 39726781: '(S)-(6-methyl-1-(pyrimidin-2-yl)-1,4,6,7-tetrahydro-5H-[1,2,3] triazolo [4,5-c] pyridin-5-yl) (3-nitro-2-(trifluoromethyl)pyridin-4-yl) methanone'.