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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.

Term:carbon-14 atom
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Accession:CHEBI:36927 term browser browse the term
Definition:A carbon atom that has formula C.
Synonyms:related_synonym: (14)6C;   (14)C;   Formula=[14C];   InChI=1S/C/i1+2;   InChIKey=OKTJSMMVPCPJKN-NJFSPNSNSA-N;   SMILES=[14C];   carbon, isotope of mass 14;   carbon-14
 xref: CAS:14762-75-5;   Wikipedia:Carbon-14

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Path 1
Term Annotations click to browse term
  CHEBI ontology 20089
    chemical entity 20088
      atom 20058
        nonmetal atom 19979
          carbon atom 19909
            carbon-14 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20089
    subatomic particle 20058
      composite particle 20058
        hadron 20088
          baryon 20088
            nucleon 20088
              atomic nucleus 20088
                atom 20058
                  main group element atom 19960
                    p-block element atom 19990
                      carbon group element atom 19916
                        carbon atom 19909
                          carbon-14 atom 0
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