Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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.

go back to main search page
Accession:CHEBI:36767 term browser browse the term
Definition:A monocyclic arene that has formula C5H5.
Synonyms:exact_synonym: cyclopenta-2,4-dienide
 related_synonym: C5H5;   Cp(-);   Formula=C5H5;   InChI=1S/C5H5/c1-2-4-5-3-1/h1-5H/q-1;   InChIKey=SINKOGOPEQSHQD-UHFFFAOYSA-N;   SMILES=c1cc[cH-]c1;   cyclopentadienide anion
 xref: Beilstein:3587332;   CAS:12127-83-2;   Gmelin:81759

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 900
    chemical entity 900
      molecular entity 898
        polyatomic entity 868
          molecule 747
            cyclic compound 656
              aromatic compound 539
                organic aromatic compound 539
                  arene 77
                    monocyclic arene 62
                      cyclopentadienide 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 900
    subatomic particle 885
      composite particle 885
        hadron 885
          baryon 885
            nucleon 885
              atomic nucleus 885
                atom 885
                  main group element atom 855
                    main group molecular entity 853
                      s-block molecular entity 742
                        hydrogen molecular entity 729
                          hydrides 355
                            organic hydride 254
                              organic fundamental parent 254
                                hydrocarbon 190
                                  olefin 0
                                    cyclic olefin 0
                                      monocyclic olefin 0
                                        cycloalkadiene 0
                                          cyclopentadiene 0
                                            cyclopentadienide 0
paths to the root