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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:selenium-77 atom
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Accession:CHEBI:52457 term browser browse the term
Definition:A stable isotope of selenium with relative atomic mass 76.919915, 7.60 atom percent natural abundance and nuclear spin 1/2.
Synonyms:related_synonym: (77)34Se;   Formula=[77Se];   InChI=1S/Se/i1-2;   InChIKey=BUGBHKTXTAQXES-YPZZEJLDSA-N;   SMILES=[77Se];   Se-77;   selenium, isotope of mass 77;   selenium-(77)Se;   selenium-77
 xref: Chemspider:9507361;   PMID:16158304;   PMID:23159557;   PMID:25848959;   PMID:25923042;   PMID:27129100;   PMID:30828921;   PMID:32453871;   PMID:34153173

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Path 1
Term Annotations click to browse term
  CHEBI ontology 0
    chemical entity 0
      atom 0
        nonmetal atom 0
          selenium atom 0
            selenium-77 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 0
    subatomic particle 0
      composite particle 0
        hadron 0
          baryon 0
            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    p-block element atom 0
                      chalcogen 0
                        selenium atom 0
                          selenium-77 atom 0
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