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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2007-07-11 08:58:27 UTC
Update Date2022-03-07 02:49:32 UTC
HMDB IDHMDB0006707
Secondary Accession Numbers
  • HMDB06707
Metabolite Identification
Common NameCoenzyme Q9
DescriptionCoenzyme Q9 (CoQ9) is a normal constituent of human plasma. CoQ9 in human plasma may originate as a product of incomplete CoQ10 biosynthesis or from the diet. The estimated dietary CoQ9 intake is 0 to 1.3 umol/day, primarily from cereals and fats, but this is unreliable because many food items contain levels below the detection limit. Plasma CoQ9 increases after supplementation with CoQ10, and CoQ9 and CoQ10 are significantly correlated. (PMID: 17405953 ).
Structure
Thumb
Synonyms
ValueSource
(all-e)-2,3-Dimethoxy-5-methyl-6-(3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaenyl)-2,5-cyclohexadiene-1,4-dioneChEBI
2,3-Dimethoxy-5-methyl-6-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaen-1-yl]-1,4-benzoquinoneChEBI
CoQ9ChEBI
Ubiquinone-45ChEBI
Coenzyme Q(9)Kegg
2-Methyl-3-nonaprenyl-5,6-dimethoxy-1,4-benzoquinoneHMDB
Coenzyme Q(sub 9)HMDB
CoQ(sub 9)HMDB
Ubiquinone 45HMDB
Ubiquinone 9HMDB
Ubiquinone Q(sub 9)HMDB
Ubiquinone Q9HMDB
Ubiquinone-9HMDB
Ubiquinone 9, (Z,Z,Z,Z,Z,e,e,e)-isomerHMDB
Ubiquinone Q-9HMDB
Coenzyme Q9ChEBI
Chemical FormulaC54H82O4
Average Molecular Weight795.2265
Monoisotopic Molecular Weight794.621311112
IUPAC Name2,3-dimethoxy-5-methyl-6-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaen-1-yl]cyclohexa-2,5-diene-1,4-dione
Traditional Nameubiquinone 9
CAS Registry Number303-97-9
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)CC\C=C(/C)CCC=C(C)C)=C(C)C1=O
InChI Identifier
InChI=1S/C54H82O4/c1-40(2)22-14-23-41(3)24-15-25-42(4)26-16-27-43(5)28-17-29-44(6)30-18-31-45(7)32-19-33-46(8)34-20-35-47(9)36-21-37-48(10)38-39-50-49(11)51(55)53(57-12)54(58-13)52(50)56/h22,24,26,28,30,32,34,36,38H,14-21,23,25,27,29,31,33,35,37,39H2,1-13H3/b41-24+,42-26+,43-28+,44-30+,45-32+,46-34+,47-36+,48-38+
InChI KeyUUGXJSBPSRROMU-WJNLUYJISA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as ubiquinones. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methyl(1,4-benzoquinone) moiety to which an isoprenyl group is attached at ring position 2(or 6).
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassQuinone and hydroquinone lipids
Direct ParentUbiquinones
Alternative Parents
Substituents
  • Polyterpenoid
  • Polyprenylbenzoquinone
  • Ubiquinone skeleton
  • Quinone
  • P-benzoquinone
  • Vinylogous ester
  • Cyclic ketone
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Blood
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.29 +/- 0.04 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedNewborn (0-30 days old)Not Specified
Premature neonates
details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB112233
KNApSAcK IDC00007442
Chemspider ID4444118
KEGG Compound IDC01967
BioCyc IDUBIQUINONE-9
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound5280473
PDB IDNot Available
ChEBI ID18160
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Molyneux S, Lever M, Florkowski C, George P: Plasma total coenzyme Q9 (CoQ9) in the New Zealand population: reference interval and biological variation. Clin Chem. 2007 Apr;53(4):802-3. [PubMed:17405953 ]

Enzymes

General function:
Involved in methyltransferase activity
Specific function:
Not Available
Gene Name:
COQ3
Uniprot ID:
Q9NZJ6
Molecular weight:
41053.76
Reactions
S-Adenosylmethionine + 3-Demethylubiquinone-9 → S-Adenosylhomocysteine + Coenzyme Q9details