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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:180439 term browser browse the term
Synonyms:exact_synonym: 3,4,4a,5,6,7,8,8a-octahydrochromen-2-one
 related_synonym: Formula=C9H14O2;   InChI=1S/C9H14O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h7-8H,1-6H2;   InChIKey=MSFLYJIWLHSQLG-UHFFFAOYSA-N;   SMILES=O1C2C(CCCC2)CCC1=O
 xref: CAS:4430-31-3;   Chemspider:19294;   HMDB:HMDB0037276

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 1193
    chemical entity 1203
      atom 1180
        nonmetal atom 1123
          oxygen atom 952
            oxygen molecular entity 952
              organooxygen compound 660
                oxacycle 458
                  benzopyran 123
                    Octahydro-2H-1-benzopyran-2-one 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 1193
    subatomic particle 1180
      composite particle 1190
        hadron 1180
          baryon 1180
            nucleon 1180
              atomic nucleus 1180
                atom 1180
                  main group element atom 1141
                    main group molecular entity 1130
                      p-block molecular entity 1137
                        carbon group molecular entity 1016
                          organic molecular entity 1015
                            organic molecule 935
                              organic cyclic compound 852
                                organic heterocyclic compound 565
                                  organic heteropolycyclic compound 269
                                    benzopyran 123
                                      Octahydro-2H-1-benzopyran-2-one 0
paths to the root