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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 24481
    chemical entity 24449
      molecular entity 24412
        elemental molecular entity 17537
          monoatomic entity 16358
            monoatomic helium 0
              helium(2+) 0
                alpha-particle + 0
                helion + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 24481
    subatomic particle 24438
      composite particle 24438
        hadron 24438
          baryon 24438
            nucleon 24438
              atomic nucleus 24438
                atom 24438
                  main group element atom 24295
                    main group molecular entity 24295
                      gas molecular entity 19575
                        noble gas atom 71
                          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