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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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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 22048
    chemical entity 22046
      atom 22039
        nonmetal atom 21937
          carbon atom 21700
            carbon-14 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 22048
    subatomic particle 22039
      composite particle 22039
        hadron 22039
          baryon 22039
            nucleon 22039
              atomic nucleus 22039
                atom 22039
                  main group element atom 21971
                    p-block element atom 21971
                      carbon group element atom 21785
                        carbon atom 21700
                          carbon-14 atom 0
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