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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:89638 term browser browse the term
Definition:An acyclic olefin that has formula C8H14.
Synonyms:related_synonym: (3E)-1,3-Octadiene;   (3E)-octa-1,3-diene;   1,3-Octadiene, E;   1,3-Octadiene, trans;   Formula=C8H14;   InChI=1S/C8H14/c1-3-5-7-8-6-4-2/h3,5,7H,1,4,6,8H2,2H3/b7-5+;   InChIKey=QTYUSOHYEPOHLV-FNORWQNLSA-N;   Octadiene;   Octadiene [UN2309] [Flammable liquid];   SMILES=CCCC/C=C/C=C
 xref: CAS:1002-33-1;   HMDB:HMDB0040966;   PMID:24421258

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19787
    chemical entity 19787
      atom 19784
        nonmetal atom 19659
          carbon atom 19563
            organic molecular entity 19563
              olefinic compound 14457
                olefin 7183
                  acyclic olefin 7164
                    1,3-Octadiene 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19787
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19672
                    main group molecular entity 19672
                      s-block molecular entity 19430
                        hydrogen molecular entity 19420
                          hydrides 18686
                            organic hydride 18249
                              organic fundamental parent 18249
                                hydrocarbon 17969
                                  olefin 7183
                                    acyclic olefin 7164
                                      1,3-Octadiene 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.