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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:hydrocarbylidyne group
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Accession:CHEBI:33474 term browser browse the term
Definition:Trivalent groups, RC#, formed by removing three hydrogen atoms from the same carbon atom of a hydrocarbon, the free valencies of which are engaged in a triple bond.
Synonyms:related_synonym: RC#;   groupe hydrocarbylidyne;   hydrocarbylidyne groups

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Path 1
Term Annotations click to browse term
  CHEBI ontology 20089
    chemical entity 20088
      group 19990
        organic group 18988
          hydrocarbylidyne group 0
            methylidyne group 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20089
    subatomic particle 20058
      composite particle 20058
        hadron 20088
          baryon 20088
            nucleon 20088
              atomic nucleus 20088
                atom 20058
                  main group element atom 19960
                    main group molecular entity 19960
                      s-block molecular entity 19784
                        hydrogen molecular entity 19777
                          hydrides 19115
                            organic hydride 18675
                              organic fundamental parent 18657
                                hydrocarbon 18408
                                  hydrocarbylidyne group 0
                                    methylidyne group 0
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