| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2007-05-22 21:16:34 UTC |
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| Update Date | 2022-03-07 02:49:31 UTC |
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| HMDB ID | HMDB0006283 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 20alpha-Hydroxycholesterol |
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| Description | 20alpha-Hydroxycholesterol belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core. Thus, 20alpha-hydroxycholesterol is considered to be a sterol. Based on a literature review very few articles have been published on 20alpha-Hydroxycholesterol. |
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| Structure | CC(C)CCC[C@@](C)(O)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C InChI=1S/C27H46O2/c1-18(2)7-6-14-27(5,29)24-11-10-22-21-9-8-19-17-20(28)12-15-25(19,3)23(21)13-16-26(22,24)4/h8,18,20-24,28-29H,6-7,9-17H2,1-5H3/t20-,21-,22-,23-,24-,25-,26-,27+/m0/s1 |
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| Synonyms | | Value | Source |
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| 20a-Hydroxycholesterol | Generator | | 20Α-hydroxycholesterol | Generator | | (20S)-20-Hydroxycholesterol | MeSH | | (20S)-Cholest-5-ene-3 beta,20-diol | MeSH | | 20 alpha-Hydroxycholesterol | MeSH | | 20-Hydroxycholesterol | MeSH | | 20-Hydroxycholesterol, (3beta,20 xi)-isomer | MeSH | | 20-Hydroxycholesterol, 3H-labeled, (3beta,20 xi)-isomer | MeSH | | 20R-Hydroxycholesterol | MeSH | | (3beta,20R)-Cholest-5-ene-3,20-diol | HMDB | | 20alpha-Hydroxy cholesterol | HMDB |
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| Chemical Formula | C27H46O2 |
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| Average Molecular Weight | 402.6529 |
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| Monoisotopic Molecular Weight | 402.349780716 |
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| IUPAC Name | (1S,2R,5S,10S,11S,14S,15S)-14-[(2R)-2-hydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-ol |
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| Traditional Name | 20a-hydroxy cholesterol |
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| CAS Registry Number | 516-72-3 |
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| SMILES | CC(C)CCC[C@@](C)(O)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C |
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| InChI Identifier | InChI=1S/C27H46O2/c1-18(2)7-6-14-27(5,29)24-11-10-22-21-9-8-19-17-20(28)12-15-25(19,3)23(21)13-16-26(22,24)4/h8,18,20-24,28-29H,6-7,9-17H2,1-5H3/t20-,21-,22-,23-,24-,25-,26-,27+/m0/s1 |
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| InChI Key | MCKLJFJEQRYRQT-MGNSQDQZSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Steroids and steroid derivatives |
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| Sub Class | Cholestane steroids |
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| Direct Parent | Cholesterols and derivatives |
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| Alternative Parents | |
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| Substituents | - Cholesterol
- Cholesterol-skeleton
- 20-hydroxysteroid
- 3-beta-hydroxy-delta-5-steroid
- Hydroxysteroid
- 3-hydroxy-delta-5-steroid
- 3-hydroxysteroid
- 3-beta-hydroxysteroid
- Delta-5-steroid
- Tertiary alcohol
- Cyclic alcohol
- Secondary alcohol
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxygen compound
- Alcohol
- Aliphatic homopolycyclic compound
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| Molecular Framework | Aliphatic homopolycyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | |
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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 | 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. | 8.83 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 23.1451 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.45 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3414.0 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 597.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 282.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 232.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 625.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1141.6 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 | 996.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 96.6 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1849.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 636.3 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 | 2036.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 682.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 557.1 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 284.3 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 646.7 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 | 8.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 20alpha-Hydroxycholesterol,1TMS,isomer #1 | CC(C)CCC[C@@](C)(O[Si](C)(C)C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@@]21C | 3323.7 | Semi standard non polar | 33892256 | | 20alpha-Hydroxycholesterol,1TMS,isomer #2 | CC(C)CCC[C@@](C)(O)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O[Si](C)(C)C)CC[C@]4(C)[C@H]3CC[C@@]21C | 3336.0 | Semi standard non polar | 33892256 | | 20alpha-Hydroxycholesterol,2TMS,isomer #1 | CC(C)CCC[C@@](C)(O[Si](C)(C)C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O[Si](C)(C)C)CC[C@]4(C)[C@H]3CC[C@@]21C | 3346.1 | Semi standard non polar | 33892256 | | 20alpha-Hydroxycholesterol,1TBDMS,isomer #1 | CC(C)CCC[C@@](C)(O[Si](C)(C)C(C)(C)C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@@]21C | 3568.7 | Semi standard non polar | 33892256 | | 20alpha-Hydroxycholesterol,1TBDMS,isomer #2 | CC(C)CCC[C@@](C)(O)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)[C@H]3CC[C@@]21C | 3574.0 | Semi standard non polar | 33892256 | | 20alpha-Hydroxycholesterol,2TBDMS,isomer #1 | CC(C)CCC[C@@](C)(O[Si](C)(C)C(C)(C)C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)[C@H]3CC[C@@]21C | 3822.8 | 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 - 20alpha-Hydroxycholesterol GC-MS (Non-derivatized) - 70eV, Positive | splash10-007c-1139000000-2c00b5523723b960fa5a | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 20alpha-Hydroxycholesterol GC-MS (2 TMS) - 70eV, Positive | splash10-001i-3011490000-84aa9e3675270a653af2 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 20alpha-Hydroxycholesterol GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 20alpha-Hydroxycholesterol 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 - 20alpha-Hydroxycholesterol 10V, Positive-QTOF | splash10-0f79-0009200000-78634a50a076fbe30975 | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 20V, Positive-QTOF | splash10-05tr-3039100000-08dfa0b5e30063e9930a | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 40V, Positive-QTOF | splash10-0avi-8189000000-c3bb06d3d099c9c4f440 | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 10V, Negative-QTOF | splash10-0udi-0003900000-4b881293f669607058cc | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 20V, Negative-QTOF | splash10-0ue9-1039800000-4c4801e96fa5d9126da5 | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 40V, Negative-QTOF | splash10-059i-3089000000-806365cc5d181d0d25d9 | 2017-07-26 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 10V, Negative-QTOF | splash10-0udi-0000900000-079f76b4d985e4b92c9d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 20V, Negative-QTOF | splash10-0udi-0000900000-079f76b4d985e4b92c9d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 40V, Negative-QTOF | splash10-0udi-0009500000-63d3ce6872e526ad179d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 10V, Positive-QTOF | splash10-0f9i-0109100000-ba23251dfb42b1ea90e7 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 20V, Positive-QTOF | splash10-0a4l-9147100000-ed7f14edc5be9509ea46 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 20alpha-Hydroxycholesterol 40V, Positive-QTOF | splash10-0a4i-9820000000-1d6a2993646068927786 | 2021-09-24 | Wishart Lab | View Spectrum |
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