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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.

Term:hex-5-ynoic acid
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Accession:CHEBI:73511 term browser browse the term
Definition:A hexynoic acid in which the triple bond is between the carbons at positions 5 and 6.
Synonyms:related_synonym: 5-hexynoic acid;   Formula=C6H8O2;   InChI=1S/C6H8O2/c1-2-3-4-5-6(7)8/h1H,3-5H2,(H,7,8);   InChIKey=VPFMEXRVUOPYRG-UHFFFAOYSA-N;   SMILES=OC(=O)CCCC#C
 xref: CAS:53293-00-8;   PMID:22043242;   PMID:22043853;   PMID:22840013;   Reaxys:1743192

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19816
    chemical entity 19816
      molecular entity 19814
        polyatomic entity 19727
          molecule 19554
            organic molecule 19522
              acetylenic compound 5793
                terminal acetylenic compound 5548
                  hex-5-ynoic acid 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19816
    subatomic particle 19814
      composite particle 19814
        hadron 19814
          baryon 19814
            nucleon 19814
              atomic nucleus 19814
                atom 19814
                  main group element atom 19702
                    p-block element atom 19702
                      carbon group element atom 19608
                        carbon atom 19597
                          organic molecular entity 19597
                            organic group 18537
                              organic divalent group 18530
                                organodiyl group 18530
                                  carbonyl group 18436
                                    carbonyl compound 18436
                                      carboxylic acid 18114
                                        monocarboxylic acid 17476
                                          fatty acid 15990
                                            unsaturated fatty acid 923
                                              acetylenic fatty acid 0
                                                hexynoic acid 0
                                                  hex-5-ynoic acid 0
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