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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:78465 term browser browse the term
Definition:An alkene that is pentacosane which has been dehydrogenated to introduce a double bond at the 1-2 position.
Synonyms:related_synonym: 1-pentacosene;   Formula=C25H50;   InChI=1S/C25H50/c1-3-5-7-9-11-13-15-17-19-21-23-25-24-22-20-18-16-14-12-10-8-6-4-2/h3H,1,4-25H2,2H3;   InChIKey=BDWBGSCECOPTTH-UHFFFAOYSA-N;   SMILES=CCCCCCCCCCCCCCCCCCCCCCCC=C;   n-C13H27CH=CH2
 xref: CAS:16980-85-1;   LIPID_MAPS_instance:LMFA11000326;   PMID:12564805;   Reaxys:8449362

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Path 1
Term Annotations click to browse term
  CHEBI ontology 0
    role 0
      biological role 0
        molecular messenger 0
          semiochemical 0
            pentacosane 0
              pentacos-1-ene 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 0
    subatomic particle 0
      composite particle 0
        hadron 0
          baryon 0
            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    main group molecular entity 0
                      s-block molecular entity 0
                        hydrogen molecular entity 0
                          hydrides 0
                            organic hydride 0
                              organic fundamental parent 0
                                hydrocarbon 0
                                  alkane 0
                                    long-chain alkane 0
                                      pentacosane 0
                                        pentacos-1-ene 0
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