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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:36912 term browser browse the term
Definition:A homomonocyclic compound that has formula Se8.
Synonyms:exact_synonym: octaselenocane
 related_synonym: Formula=Se8;   InChI=1S/Se8/c1-2-4-6-8-7-5-3-1;   InChIKey=JWMKWLJGSKAGLH-UHFFFAOYSA-N;   SMILES=[Se]1[Se][Se][Se][Se][Se][Se][Se]1;   Se8;   octaselenium
 xref: CAS:12597-33-0;   Gmelin:3146

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Path 1
Term Annotations click to browse term
  CHEBI ontology 20057
    chemical entity 20068
      atom 20056
        nonmetal atom 19948
          selenium atom 3238
            selenium molecular entity 3233
              elemental selenium 1592
                cyclooctaselenium 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20057
    subatomic particle 20056
      composite particle 20068
        hadron 20056
          baryon 20056
            nucleon 20056
              atomic nucleus 20056
                atom 20056
                  group 19989
                    polyatomic entity 19987
                      molecule 19855
                        cyclic compound 19637
                          homocyclic compound 18553
                            homomonocyclic compound 0
                              cyclooctaselenium 0
paths to the root