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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:35104 term browser browse the term
Definition:A strontium cation that has formula Sr.
Synonyms:exact_synonym: strontium(2+) ion;   strontium(II) cation
 related_synonym: Formula=Sr;   InChI=1S/Sr/q+2;   InChIKey=PWYYWQHXAPXYMF-UHFFFAOYSA-N;   SMILES=[Sr++];   STRONTIUM ION;   Sr(2+);   Sr2+;   Strontium
 alt_id: CHEBI:33514;   CHEBI:34982;   CHEBI:49891
 xref: CAS:22537-39-9;   Gmelin:6868;   KEGG:C13884
 xref_mesh: MESH:D013324
 xref: PDBeChem:SR

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19900
    role 19875
      biological role 19873
        biochemical role 19567
          cofactor 15925
            strontium(2+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19900
    subatomic particle 19898
      composite particle 19898
        hadron 19898
          baryon 19898
            nucleon 19898
              atomic nucleus 19898
                atom 19898
                  main group element atom 19845
                    main group molecular entity 19845
                      s-block molecular entity 19678
                        alkaline earth molecular entity 887
                          strontium molecular entity 1
                            elemental strontium 0
                              strontium ion 0
                                strontium cation 0
                                  strontium(2+) 0
paths to the root