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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-3 atom
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Accession:CHEBI:30218 term browser browse the term
Definition:The stable isotope of helium with relative atomic mass 3.016029. The least abundant (0.000137 atom percent) isotope of naturally occurring helium.
Synonyms:related_synonym: (3)2He;   (3)He;   (3He)helium;   Formula=[3He];   InChI=1S/He/i1-1;   InChIKey=SWQJXJOGLNCZEY-BJUDXGSMSA-N;   SMILES=[3He];   helium, isotope of mass 3;   helium-3
 xref: CAS:14762-55-1;   Gmelin:14208


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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 26034
    chemical entity 26024
      atom 26009
        s-block element atom 25166
          helium atom 0
            helium-3 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 26034
    subatomic particle 26009
      composite particle 26009
        hadron 26020
          baryon 26009
            nucleon 26009
              atomic nucleus 26009
                atom 26009
                  main group element atom 25834
                    main group molecular entity 25834
                      gas molecular entity 20728
                        noble gas atom 90
                          noble gas molecular entity 6
                            helium molecular entity 0
                              elemental helium 0
                                monoatomic helium 0
                                  helium(2+) 0
                                    helion 0
                                      helium-3 atom 0
paths to the root