CHEBI:36939 - fluorine-18 atom

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ChEBI Name fluorine-18 atom
ChEBI ID CHEBI:36939
Definition The radioactive isotope of fluorine with relative atomic mass 18.000938. The longest-lived fluorine radionuclide with half-life of 109.77 min.
Stars This entity has been manually annotated by the ChEBI Team.
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Formula [18F]
Net Charge 0
Average Mass 18.001
Monoisotopic Mass 18.00094
InChI InChI=1S/F/i1-1
InChIKey YCKRFDGAMUMZLT-BJUDXGSMSA-N
SMILES [18F]
Roles Classification
Biological Role(s): micronutrient
Any nutrient required in small quantities by organisms throughout their life in order to orchestrate a range of physiological functions.
(via fluorine atom )
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ChEBI Ontology
Outgoing fluorine-18 atom (CHEBI:36939) is a fluorine atom (CHEBI:24061)
Incoming fluorine-18 molecular entity (CHEBI:49133) has part fluorine-18 atom (CHEBI:36939)
IUPAC Name
fluorine-18
Synonyms Sources
189F IUPAC
18F IUPAC
fluorine, isotope of mass 18 ChemIDplus
fluorine-18 ChEBI
Manual Xrefs Databases
DB13134 DrugBank
Fluorine-18 Wikipedia
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Registry Number Type Source
13981-56-1 CAS Registry Number ChemIDplus
Last Modified
15 June 2021