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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:48060 term browser browse the term
Definition:A terminal acetylenic compound that has formula C4H4O.
Synonyms:exact_synonym: but-3-yn-2-one
 related_synonym: 1-butyn-3-one;   CH3COC#CH;   Formula=C4H4O;   InChI=1S/C4H4O/c1-3-4(2)5/h1H,2H3;   InChIKey=XRGPFNGLRSIPSA-UHFFFAOYSA-N;   SMILES=CC(=O)C#C;   acetylacetylene;   acetylethyne;   methyl ethynyl ketone
 xref: Beilstein:605353;   CAS:1423-60-5;   Gmelin:49292

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19810
    role 19758
      application 19420
        solvent 16486
          polar solvent 15276
            polar aprotic solvent 571
              butan-2-one 5
                butyn-2-one 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19810
    subatomic particle 19808
      composite particle 19808
        hadron 19808
          baryon 19808
            nucleon 19808
              atomic nucleus 19808
                atom 19808
                  main group element atom 19696
                    p-block element atom 19696
                      carbon group element atom 19599
                        carbon atom 19588
                          organic molecular entity 19588
                            organic group 18527
                              organic divalent group 18520
                                organodiyl group 18520
                                  carbonyl group 18427
                                    carbonyl compound 18427
                                      ketone 16171
                                        dialkyl ketone 42
                                          butan-2-one 5
                                            butyn-2-one 0
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