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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:49695 term browser browse the term
Definition:A monoatomic krypton that has formula Kr.
Synonyms:related_synonym: Formula=Kr;   InChI=1S/Kr;   InChIKey=DNNSSWSSYDEUBZ-UHFFFAOYSA-N;   KRYPTON;   SMILES=[Kr];   [Kr]
 xref: MolBase:925;   PDBeChem:KR

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19911
    chemical entity 19909
      molecular entity 19909
        elemental molecular entity 16953
          monoatomic entity 15870
            monoatomic krypton 0
              krypton(0) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19911
    subatomic particle 19909
      composite particle 19909
        hadron 19909
          baryon 19909
            nucleon 19909
              atomic nucleus 19909
                atom 19909
                  main group element atom 19859
                    main group molecular entity 19859
                      gas molecular entity 18478
                        noble gas atom 46
                          noble gas molecular entity 6
                            krypton molecular entity 0
                              elemental krypton 0
                                monoatomic krypton 0
                                  krypton(0) 0
paths to the root