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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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:annulene
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Accession:CHEBI:33662 term browser browse the term
Definition:A mancude monocyclic hydrocarbon without side chains of the general formula CnHn (n is an even number) or CnHn+1 (n is an odd number). In systematic nomenclature an annulene with seven or more carbon atoms may be named [n]annulene, where n is the number of carbon atoms.
Synonyms:exact_synonym: annulenes



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  • Term paths to the root
    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19800
        chemical entity 19800
          group 19722
            polyatomic entity 19721
              molecule 19572
                cyclic compound 19379
                  homocyclic compound 18316
                    carbocyclic compound 18316
                      cyclic hydrocarbon 17069
                        monocyclic hydrocarbon 5845
                          annulene 5672
                            antiaromatic annulene + 0
                            aromatic annulene + 5672
                            cyclohepta-1,3,5-triene + 5
    Path 2
    Term Annotations click to browse term
      CHEBI ontology 19800
        subatomic particle 19799
          composite particle 19799
            hadron 19799
              baryon 19799
                nucleon 19799
                  atomic nucleus 19799
                    atom 19799
                      main group element atom 19698
                        main group molecular entity 19698
                          s-block molecular entity 19479
                            hydrogen molecular entity 19471
                              hydrides 18834
                                organic hydride 18348
                                  organic fundamental parent 18348
                                    hydrocarbon 18059
                                      cyclic hydrocarbon 17069
                                        monocyclic hydrocarbon 5845
                                          annulene 5672
                                            antiaromatic annulene + 0
                                            aromatic annulene + 5672
                                            cyclohepta-1,3,5-triene + 5
    paths to the root