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:61683 term browser browse the term
Definition:A ubiquinone whose structure comprises a 2,3-dimethoxy-5-methylbenzoquinone nucleus (common to all ubiquinones) and a side chain of eight isoprenoid units.
Synonyms:exact_synonym: 2,3-dimethoxy-5-methyl-6-[(2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaen-1-yl]-1,4-benzoquinone
 related_synonym: COQ8;   Coenzyme-Q8;   Formula=C49H74O4;   InChI=1S/C49H74O4/c1-36(2)20-13-21-37(3)22-14-23-38(4)24-15-25-39(5)26-16-27-40(6)28-17-29-41(7)30-18-31-42(8)32-19-33-43(9)34-35-45-44(10)46(50)48(52-11)49(53-12)47(45)51/h20,22,24,26,28,30,32,34H,13-19,21,23,25,27,29,31,33,35H2,1-12H3/b37-22+,38-24+,39-26+,40-28+,41-30+,42-32+,43-34+;   InChIKey=ICFIZJQGJAJRSU-SGHXUWJISA-N;   SMILES=COC1=C(OC)C(=O)C(C\\C=C(/C)CC\\C=C(/C)CC\\C=C(/C)CC\\C=C(/C)CC\\C=C(/C)CC\\C=C(/C)CC\\C=C(/C)CCC=C(C)C)=C(C)C1=O
 xref: CAS:2394-68-5;   KEGG:C17569;   MetaCyc:UBIQUINONE-8;   PDBeChem:UQ8

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19800
    role 19751
      application 19498
        indicator 8691
          biomarker 6473
            ubiquinone-8 0
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
                    p-block element atom 19698
                      carbon group element atom 19619
                        carbon atom 19609
                          organic molecular entity 19609
                            organic group 18718
                              organic divalent group 18702
                                organodiyl group 18702
                                  carbonyl group 18651
                                    carbonyl compound 18651
                                      ketone 16957
                                        cyclic ketone 15522
                                          quinone 8385
                                            benzoquinones 740
                                              1,4-benzoquinones 736
                                                monohydroxy-1,4-benzoquinones 78
                                                  2-hydroxy-5-methylquinone 72
                                                    2,3-dihydroxy-5-methyl-1,4-benzoquinone 72
                                                      ubiquinones 72
                                                        ubiquinone-8 0
paths to the root