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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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.

Term:olefin
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Accession:CHEBI:33641 term browser browse the term
Definition:Acyclic and cyclic hydrocarbons having one or more carbon-carbon double bonds, apart from the formal ones in aromatic compounds. The class olefins subsumes alkenes and cycloalkenes and the corresponding polyenes.
Synonyms:related_synonym: olefins



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  • Term paths to the root
    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19876
        chemical entity 19905
          atom 19905
            nonmetal atom 19810
              carbon atom 19764
                organic molecular entity 19764
                  olefinic compound 16964
                    olefin 8900
                      acyclic olefin + 8738
                      cyclic olefin + 411
                      polyene + 29
    Path 2
    Term Annotations click to browse term
      CHEBI ontology 19876
        subatomic particle 19874
          composite particle 19874
            hadron 19874
              baryon 19874
                nucleon 19874
                  atomic nucleus 19905
                    atom 19905
                      main group element atom 19821
                        main group molecular entity 19821
                          s-block molecular entity 19655
                            hydrogen molecular entity 19644
                              hydrides 19127
                                organic hydride 18682
                                  organic fundamental parent 18682
                                    hydrocarbon 18433
                                      olefin 8900
                                        acyclic olefin + 8738
                                        cyclic olefin + 411
                                        polyene + 29
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