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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 19905
    chemical entity 19903
      atom 19903
        nonmetal atom 19839
          carbon atom 19793
            carbon-14 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19905
    subatomic particle 19903
      composite particle 19903
        hadron 19903
          baryon 19903
            nucleon 19903
              atomic nucleus 19903
                atom 19903
                  main group element atom 19853
                    p-block element atom 19853
                      carbon group element atom 19798
                        carbon atom 19793
                          carbon-14 atom 0
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