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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
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  CHEBI ontology 19900
    chemical entity 19898
      group 19856
        organic group 18957
          hydrocarbylidyne group 0
            methylidyne group 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19900
    subatomic particle 19898
      composite particle 19898
        hadron 19898
          baryon 19898
            nucleon 19898
              atomic nucleus 19898
                atom 19898
                  main group element atom 19845
                    main group molecular entity 19845
                      s-block molecular entity 19678
                        hydrogen molecular entity 19667
                          hydrides 19146
                            organic hydride 18704
                              organic fundamental parent 18704
                                hydrocarbon 18428
                                  hydrocarbylidyne group 0
                                    methylidyne group 0
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