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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:72322 term browser browse the term
Definition:A choline in which one of the methyl carbons is replaced by an (11)C isotope. An intravenous radioactive diagnostic agent used (in the form of its chloride salt) as a tracer during positron emission tomography scans to help detect sites of recurrent prostate cancer.
Synonyms:related_synonym: Choline C11;   Formula=C4[11C]H14NO;   InChI=1S/C5H14NO/c1-6(2,3)4-5-7/h7H,4-5H2,1-3H3/q+1/i1-1;   InChIKey=OEYIOHPDSNJKLS-BJUDXGSMSA-N;   SMILES=[N+](CCO)(C)(C)C;   [N-methyl-(11)C]choline
 xref: CAS:94793-58-5;   Drug_Central:4635;   Patent:US2005232861;   Patent:WO2012040151;   Reaxys:7913839

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19853
    chemical entity 19853
      molecular entity 19851
        isotopically modified compound 1
          (11)C-modified compound 0
            (11)C-choline 0
              (11)C-choline chloride 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    main group molecular entity 19744
                      s-block molecular entity 19491
                        hydrogen molecular entity 19483
                          hydrides 18748
                            inorganic hydride 17481
                              pnictogen hydride 17454
                                nitrogen hydride 17296
                                  ammonium 8224
                                    ammonium ion derivative 8220
                                      quaternary ammonium ion 5084
                                        cholines 4783
                                          (11)C-choline 0
                                            (11)C-choline chloride 0
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