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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:30517 term browser browse the term
Definition:A tungsten cation that has formula W.
Synonyms:exact_synonym: tungsten(4+) ion;   tungsten(IV) cation
 related_synonym: Formula=W;   InChI=1S/W/q+4;   InChIKey=YFGRPIXHCIXTLM-UHFFFAOYSA-N;   SMILES=[W+4];   W(4+)
 xref: Gmelin:105686
 xref_mesh: MESH:D014414

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19767
    chemical entity 19767
      molecular entity 19766
        ion 15945
          cation 15777
            monoatomic cation 14023
              tungsten cation 0
                tungsten(4+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19767
    subatomic particle 19766
      composite particle 19766
        hadron 19766
          baryon 19766
            nucleon 19766
              atomic nucleus 19766
                atom 19766
                  metal atom 17350
                    transition element atom 16837
                      d-block element atom 16828
                        chromium group element atom 7543
                          tungsten 2117
                            tungsten molecular entity 31
                              elemental tungsten 0
                                tungsten cation 0
                                  tungsten(4+) 0
paths to the root