| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-10-30 10:32:48 UTC |
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| Update Date | 2022-03-07 03:17:34 UTC |
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| HMDB ID | HMDB0059661 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | QH(2) |
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| Description | QH(2), also known as ubiquinol, belongs to the class of organic compounds known as ubiquinols. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methylbenzene-1,4-diol moiety to which an isoprenyl group is attached at ring position 2(or 6). QH(2) is an extremely weak basic (essentially neutral) compound (based on its pKa). |
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| Structure | COC1=C(O)C(C)=C(CC=C(C)C)C(O)=C1OC InChI=1S/C14H20O4/c1-8(2)6-7-10-9(3)11(15)13(17-4)14(18-5)12(10)16/h6,15-16H,7H2,1-5H3 |
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| Synonyms | | Value | Source |
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| Ubiquinol | HMDB | | Ubiquinol 0 | HMDB | | Ubiquinol 1 | HMDB | | Ubiquinol 50 | HMDB | | Ubiquinol 7 | HMDB | | Ubiquinol 6 (ubiquinol 30) | HMDB | | Ubiquinol 9 | HMDB | | Ubiquinols | HMDB | | Ubiquinone hydroquinone | HMDB |
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| Chemical Formula | C14H20O4 |
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| Average Molecular Weight | 252.3062 |
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| Monoisotopic Molecular Weight | 252.136159128 |
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| IUPAC Name | 2,3-dimethoxy-5-methyl-6-(3-methylbut-2-en-1-yl)benzene-1,4-diol |
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| Traditional Name | 2,3-dimethoxy-5-methyl-6-(3-methylbut-2-en-1-yl)benzene-1,4-diol |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=C(O)C(C)=C(CC=C(C)C)C(O)=C1OC |
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| InChI Identifier | InChI=1S/C14H20O4/c1-8(2)6-7-10-9(3)11(15)13(17-4)14(18-5)12(10)16/h6,15-16H,7H2,1-5H3 |
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| InChI Key | TVLSKGDBUQMDPR-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as ubiquinols. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methylbenzene-1,4-diol 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 | Ubiquinols |
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| Alternative Parents | |
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| Substituents | - Ubiquinol skeleton
- Methoxyphenol
- Dimethoxybenzene
- O-dimethoxybenzene
- Anisole
- Hydroquinone
- M-cresol
- Phenoxy compound
- O-cresol
- Phenol ether
- Methoxybenzene
- Alkyl aryl ether
- Phenol
- Toluene
- Monocyclic benzene moiety
- Benzenoid
- Ether
- Organooxygen compound
- Organic oxygen compound
- Hydrocarbon derivative
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic 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 | Not Available |
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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 | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic 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. Predicted by Afia on May 17, 2022. | 5.95 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 12.8424 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.07 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2005.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 283.6 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 164.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 160.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 84.3 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 577.7 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 | 562.0 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 79.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1102.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 475.5 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 | 1143.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 349.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 374.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 333.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 291.5 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 | 10.0 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| QH(2),1TMS,isomer #1 | COC1=C(O)C(CC=C(C)C)=C(C)C(O[Si](C)(C)C)=C1OC | 1927.2 | Semi standard non polar | 33892256 | | QH(2),1TMS,isomer #2 | COC1=C(O)C(C)=C(CC=C(C)C)C(O[Si](C)(C)C)=C1OC | 1904.4 | Semi standard non polar | 33892256 | | QH(2),2TMS,isomer #1 | COC1=C(O[Si](C)(C)C)C(C)=C(CC=C(C)C)C(O[Si](C)(C)C)=C1OC | 1961.0 | Semi standard non polar | 33892256 | | QH(2),1TBDMS,isomer #1 | COC1=C(O)C(CC=C(C)C)=C(C)C(O[Si](C)(C)C(C)(C)C)=C1OC | 2149.6 | Semi standard non polar | 33892256 | | QH(2),1TBDMS,isomer #2 | COC1=C(O)C(C)=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=C1OC | 2130.0 | Semi standard non polar | 33892256 | | QH(2),2TBDMS,isomer #1 | COC1=C(O[Si](C)(C)C(C)(C)C)C(C)=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=C1OC | 2399.2 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - QH(2) GC-MS (Non-derivatized) - 70eV, Positive | splash10-000l-4290000000-f4931613b9126eb83a43 | 2016-09-22 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - QH(2) GC-MS (2 TMS) - 70eV, Positive | splash10-0089-2019000000-8e5ad437d5286cc0bc2a | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - QH(2) GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - QH(2) GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 10V, Positive-QTOF | splash10-0udi-0190000000-a6ad04484f30fd3e6542 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 20V, Positive-QTOF | splash10-0f6t-3890000000-88f5855287f7c4803858 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 40V, Positive-QTOF | splash10-0pvi-6910000000-2566d9b9220bdfd47f6e | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 10V, Negative-QTOF | splash10-0udi-0090000000-d3c87a4ee5f1fc3e1e44 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 20V, Negative-QTOF | splash10-0ufr-1790000000-f43f7dda07b2e0c3a516 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 40V, Negative-QTOF | splash10-00y0-8920000000-223ce579fce165e10c55 | 2015-09-15 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 10V, Negative-QTOF | splash10-0udi-0090000000-23afefc78640d53f4f60 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 20V, Negative-QTOF | splash10-0udi-0190000000-cbc2308da177796deed8 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 40V, Negative-QTOF | splash10-0a4i-2920000000-059a3fa2f55e31d2b4b2 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 10V, Positive-QTOF | splash10-0udi-0390000000-b042dd8069485cebe38b | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 20V, Positive-QTOF | splash10-0f6t-0960000000-1542fd39196840ebf34d | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH(2) 40V, Positive-QTOF | splash10-0a4r-4910000000-53135d0f8e2b249423c5 | 2021-09-22 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-21 | Wishart Lab | View Spectrum |
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