Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2007-07-11 09:18:48 UTC |
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Update Date | 2021-10-13 04:50:01 UTC |
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HMDB ID | HMDB0006709 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Ubiquinone-2 |
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Description | Ubiquinone-2 is a member of the chemical class known as Polyprenylbenzoquinones. These are compounds containing a polyisoprene chain attached to a quinone at the second ring position. Ubiquione-2 has just 2 isoprene units. Normally in humans it has 10. Ubiquinone-2 is an intermediate in the synthesis of Ubiquionone 10. Ubiquionone is involved in cellular respiration. It is fat-soluble and is therefore mobile in cellular membranes; it plays a unique role in the electron transport chain (ETC). In the inner bacterial membrane, electrons from NADH and succinate pass through the ETC to the oxygen, which is then reduced to water. The transfer of electrons through ETC results in the pumping of H+ across the membrane creating a proton gradient across the membrane, which is used by ATP synthase (located on the membrane) to generate ATP. |
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Structure | COC1=C(OC)C(=O)C(C\C=C(/C)CCC=C(C)C)=C(C)C1=O InChI=1S/C19H26O4/c1-12(2)8-7-9-13(3)10-11-15-14(4)16(20)18(22-5)19(23-6)17(15)21/h8,10H,7,9,11H2,1-6H3/b13-10+ |
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Synonyms | Value | Source |
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(e)-2-(3,7-Dimethyl-2,6-octadienyl)-5,6-dimethoxy-3-methyl-p-benzoquinone | ChEBI | 2-[(2E)-3,7-Dimethylocta-2,6-dien-1-yl]-5,6-dimethoxy-3-methyl-1,4-benzoquinone | ChEBI | Ubiquinone 10 | ChEBI | Coenzyme Q | Kegg | CoQ | Kegg | Q | Kegg | 2,3-Dimethoxy-5-geranyl-6-methyl-1,4-benzoquinone | HMDB | 2-(3,7-Dimethyl-2,6-octadienyl)-5,6-dimethoxy-3-methyl- P-benzoquinone | HMDB | 2-(3,7-Dimethyl-2,6-octadienyl)-5,6-dimethoxy-3-methyl-2,5-cyclohexadiene-1,4-dione | HMDB | 2-[(2E)-3,7-Dimethyl-2,6-octadienyl]-5,6-dimethoxy-3-methyl- P-benzoquinone | HMDB | Coenzyme Q2 | HMDB | Q 2 | HMDB | Ubiquinone 2 | HMDB | Ubiquinone Q2 | HMDB | Ubiquinone Q2, (e)-isomer | MeSH, HMDB |
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Chemical Formula | C19H26O4 |
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Average Molecular Weight | 318.4073 |
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Monoisotopic Molecular Weight | 318.18310932 |
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IUPAC Name | 2-[(2E)-3,7-dimethylocta-2,6-dien-1-yl]-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione |
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Traditional Name | coenzyme-Q |
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CAS Registry Number | 606-06-4 |
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SMILES | COC1=C(OC)C(=O)C(C\C=C(/C)CCC=C(C)C)=C(C)C1=O |
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InChI Identifier | InChI=1S/C19H26O4/c1-12(2)8-7-9-13(3)10-11-15-14(4)16(20)18(22-5)19(23-6)17(15)21/h8,10H,7,9,11H2,1-6H3/b13-10+ |
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InChI Key | SQQWBSBBCSFQGC-JLHYYAGUSA-N |
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Chemical Taxonomy |
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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). |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Quinone and hydroquinone lipids |
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Direct Parent | Ubiquinones |
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Alternative Parents | |
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Substituents | - Ubiquinone skeleton
- Monoterpenoid
- Monocyclic monoterpenoid
- Quinone
- P-benzoquinone
- Vinylogous ester
- Cyclic ketone
- Ketone
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic homomonocyclic compound
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Molecular Framework | Aliphatic homomonocyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 0.49 mg/L @ 25 °C (est) | The Good Scents Company Information System | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Experimental Collision Cross Sections |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times UnderivatizedChromatographic Method | Retention Time | Reference |
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Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter)). Predicted by Afia on May 17, 2022. | 8.91 minutes | 32390414 | Predicted by Siyang on May 30, 2022 | 18.0338 minutes | 33406817 | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 0.59 minutes | 32390414 | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3128.4 seconds | 40023050 | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 466.9 seconds | 40023050 | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 226.8 seconds | 40023050 | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 228.7 seconds | 40023050 | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 64.4 seconds | 40023050 | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 666.5 seconds | 40023050 | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 757.7 seconds | 40023050 | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 109.6 seconds | 40023050 | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1561.0 seconds | 40023050 | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 653.3 seconds | 40023050 | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1387.4 seconds | 40023050 | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 400.2 seconds | 40023050 | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 423.9 seconds | 40023050 | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 250.6 seconds | 40023050 | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 440.6 seconds | 40023050 | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 8.1 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - Ubiquinone-2 GC-MS (Non-derivatized) - 70eV, Positive | splash10-0udi-4394000000-4392d038cb40d1c25736 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Ubiquinone-2 GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental LC-MS/MS | LC-MS/MS Spectrum - Ubiquinone-2 40V, Positive-QTOF | splash10-0fnj-2940000000-9de99f5e60d85c76bc22 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Ubiquinone-2 20V, Positive-QTOF | splash10-00kb-0694000000-0e7666219469e4d3daa4 | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Ubiquinone-2 10V, Positive-QTOF | splash10-014i-0109000000-46935a3400936bee8dab | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Ubiquinone-2 20V, Positive-QTOF | splash10-00kb-0694000000-1aa3da1d9a8adf74884c | 2021-09-20 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 10V, Positive-QTOF | splash10-014i-0439000000-180eeec0662a1cd541e8 | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 20V, Positive-QTOF | splash10-01ba-3942000000-6814d10b6c7404b88af9 | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 40V, Positive-QTOF | splash10-014i-9410000000-95413a2c0ab148a85d9e | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 10V, Negative-QTOF | splash10-014i-0019000000-f5070dbbdd24c4bc12aa | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 20V, Negative-QTOF | splash10-02t9-0296000000-7c0eaf226e5a4866b999 | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 40V, Negative-QTOF | splash10-000i-9361000000-fff86254a78962e3b850 | 2015-09-15 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 10V, Negative-QTOF | splash10-014i-0009000000-9c9a5615e70cdf418e9b | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 20V, Negative-QTOF | splash10-014r-0696000000-31579df78d92b1e7acbf | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 40V, Negative-QTOF | splash10-0v7r-0491000000-cc67df533d00a14ce722 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 10V, Positive-QTOF | splash10-014j-0739000000-503861a7af6bafcfa25f | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 20V, Positive-QTOF | splash10-0002-3951000000-41b9dda5990696c36275 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ubiquinone-2 40V, Positive-QTOF | splash10-0a5c-9540000000-b49cb12d9c6d12564ffd | 2021-09-25 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-17 | Wishart Lab | View Spectrum |
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