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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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:helium(2+)
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Accession:CHEBI:33316 term browser browse the term
Definition:A monoatomic helium that has formula He.
Synonyms:related_synonym: Formula=He;   He(2+);   InChI=1S/He/q+2;   InChIKey=LBDSXVIYZYSRII-UHFFFAOYSA-N;   SMILES=[He++]


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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 21720
    chemical entity 21718
      molecular entity 21704
        elemental molecular entity 17176
          monoatomic entity 15820
            monoatomic helium 0
              helium(2+) 0
                alpha-particle + 0
                helion + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 21720
    subatomic particle 21705
      composite particle 21705
        hadron 21705
          baryon 21705
            nucleon 21705
              atomic nucleus 21705
                atom 21705
                  main group element atom 21622
                    main group molecular entity 21622
                      gas molecular entity 19197
                        noble gas atom 33
                          noble gas molecular entity 6
                            helium molecular entity 0
                              elemental helium 0
                                monoatomic helium 0
                                  helium(2+) 0
                                    alpha-particle + 0
                                    helion + 0
paths to the root