| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2013-05-09 20:53:41 UTC |
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| Update Date | 2022-03-07 03:17:38 UTC |
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| HMDB ID | HMDB0060088 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 4-Methoxyestrone |
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| Description | Thyrotropin releasing hormone, also known as TRH or protirelin, belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds. Thyrotropin releasing hormone is a very strong basic compound (based on its pKa). A tripeptide composed of L-pyroglutamyl, L-histidyl and L-prolinamide residues joined in sequence. |
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| Structure | COC1=C(O)C=CC2=C1CC[C@H]1[C@@H]3CCC(=O)[C@]3(C)CC[C@H]21 InChI=1S/C19H24O3/c1-19-10-9-12-11-5-7-16(20)18(22-2)14(11)4-3-13(12)15(19)6-8-17(19)21/h5,7,12-13,15,20H,3-4,6,8-10H2,1-2H3/t12-,13-,15+,19-/m1/s1 |
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| Synonyms | | Value | Source |
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| L-Pyroglutamyl-L-histidyl-L-prolineamide | ChEBI | | Thyroliberin | ChEBI | | Thyrotropic releasing hormone | ChEBI | | Thyrotropic-releasing factor | ChEBI | | Thyrotropin-releasing factor | ChEBI | | TRH | ChEBI | | TSH-Releasing factor | ChEBI | | TSH-Releasing hormone | ChEBI | | Protirelin | Kegg | | Relefact TRH | Kegg | | Abbott brand OF protirelin | HMDB | | Abbott-38579 | HMDB | | Antepan | HMDB | | Aventis brand OF protirelin | HMDB | | Novartis brand OF protirelin | HMDB | | Proterelin tartrate | HMDB | | Proterelin tartrate hydrate | HMDB | | Protirelin abbott brand | HMDB | | Protirelin aventis brand | HMDB | | Stimu TSH | HMDB | | Tartrate hydrate, proterelin | HMDB | | Thypinone | HMDB | | Abbott 38579 | HMDB | | Protirelin tartrate (1:1) | HMDB | | TRH Ferring | HMDB | | TRH Prem | HMDB | | Thyrotropin-releasing hormone | HMDB | | Thyrotropin-releasing hormone tartrate | HMDB | | Abbott38579 | HMDB | | Ferring brand OF protirelin | HMDB | | Henning berlin brand OF protirelin | HMDB | | Hydrate, proterelin tartrate | HMDB | | Merck brand OF protirelin | HMDB | | Prem, TRH | HMDB | | Protirelin ferring brand | HMDB | | Protirelin merck brand | HMDB | | Stimu-TSH | HMDB | | Thyroliberin TRH merck | HMDB | | Thyrotropin releasing factor | HMDB | | Protirelin novartis brand | HMDB | | StimuTSH | HMDB | | TRH, Relefact | HMDB | | Thyrotropin releasing hormone tartrate | HMDB |
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| Chemical Formula | C19H24O3 |
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| Average Molecular Weight | 300.3921 |
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| Monoisotopic Molecular Weight | 300.172544634 |
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| IUPAC Name | (1S,10R,11S,15R)-5-hydroxy-6-methoxy-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2(7),3,5-trien-14-one |
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| Traditional Name | (1S,10R,11S,15R)-5-hydroxy-6-methoxy-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2(7),3,5-trien-14-one |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=C(O)C=CC2=C1CC[C@H]1[C@@H]3CCC(=O)[C@]3(C)CC[C@H]21 |
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| InChI Identifier | InChI=1S/C19H24O3/c1-19-10-9-12-11-5-7-16(20)18(22-2)14(11)4-3-13(12)15(19)6-8-17(19)21/h5,7,12-13,15,20H,3-4,6,8-10H2,1-2H3/t12-,13-,15+,19-/m1/s1 |
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| InChI Key | PUEXVLNGOBYUEW-PITQQHRWSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Carboxylic acids and derivatives |
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| Sub Class | Amino acids, peptides, and analogues |
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| Direct Parent | Oligopeptides |
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| Alternative Parents | |
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| Substituents | - Alpha-oligopeptide
- Histidine or derivatives
- N-acyl-alpha amino acid or derivatives
- Proline or derivatives
- Alpha-amino acid amide
- Alpha-amino acid or derivatives
- N-acylpyrrolidine
- Pyrrolidine carboxylic acid or derivatives
- Pyrrolidine-2-carboxamide
- Pyrrolidone
- 2-pyrrolidone
- Azole
- Imidazole
- Heteroaromatic compound
- Pyrrolidine
- Tertiary carboxylic acid amide
- Primary carboxylic acid amide
- Lactam
- Carboxamide group
- Secondary carboxylic acid amide
- Azacycle
- Organoheterocyclic compound
- Hydrocarbon derivative
- Organooxygen compound
- Organonitrogen compound
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Organic nitrogen compound
- Carbonyl group
- Aromatic heteromonocyclic compound
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| Molecular Framework | Aromatic heteromonocyclic 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 | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Not Available |
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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. | 6.83 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 15.4793 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.38 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2441.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 387.6 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 206.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 189.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 473.0 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 712.3 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 | 694.4 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 96.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1391.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 490.9 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 | 1442.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 407.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 457.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 278.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 334.2 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 | 23.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 4-Methoxyestrone,1TMS,isomer #1 | COC1=C(O[Si](C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(=O)CC[C@@H]12 | 2758.3 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,1TMS,isomer #2 | COC1=C(O)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C)=CC[C@@H]12 | 2688.6 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,2TMS,isomer #1 | COC1=C(O[Si](C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C)=CC[C@@H]12 | 2663.4 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,2TMS,isomer #1 | COC1=C(O[Si](C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C)=CC[C@@H]12 | 2651.6 | Standard non polar | 33892256 | | 4-Methoxyestrone,2TMS,isomer #1 | COC1=C(O[Si](C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C)=CC[C@@H]12 | 3065.0 | Standard polar | 33892256 | | 4-Methoxyestrone,1TBDMS,isomer #1 | COC1=C(O[Si](C)(C)C(C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(=O)CC[C@@H]12 | 3038.6 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,1TBDMS,isomer #2 | COC1=C(O)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C(C)(C)C)=CC[C@@H]12 | 2940.0 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,2TBDMS,isomer #1 | COC1=C(O[Si](C)(C)C(C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C(C)(C)C)=CC[C@@H]12 | 3096.4 | Semi standard non polar | 33892256 | | 4-Methoxyestrone,2TBDMS,isomer #1 | COC1=C(O[Si](C)(C)C(C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C(C)(C)C)=CC[C@@H]12 | 3008.7 | Standard non polar | 33892256 | | 4-Methoxyestrone,2TBDMS,isomer #1 | COC1=C(O[Si](C)(C)C(C)(C)C)C=CC2=C1CC[C@@H]1[C@@H]2CC[C@@]2(C)C(O[Si](C)(C)C(C)(C)C)=CC[C@@H]12 | 3308.2 | Standard 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 - 4-Methoxyestrone GC-MS (Non-derivatized) - 70eV, Positive | splash10-0fe0-0490000000-e0b809016b8c8bad412a | 2017-09-20 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxyestrone GC-MS (1 TMS) - 70eV, Positive | splash10-08ou-1059000000-fc0f62cbcdf1d5df5108 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxyestrone GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Methoxyestrone 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 - 4-Methoxyestrone 10V, Positive-QTOF | splash10-0udi-0029000000-d7fd1e3ab4e4be728914 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 20V, Positive-QTOF | splash10-0v4i-0792000000-557e318f749c8060ba9b | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 40V, Positive-QTOF | splash10-0pi9-5490000000-42c39c3194e527bdc751 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 10V, Negative-QTOF | splash10-0002-0090000000-0655540f59ad5c8c43a0 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 20V, Negative-QTOF | splash10-0002-0090000000-5f7c58555ff69013e200 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 40V, Negative-QTOF | splash10-0kec-1090000000-461b8b04617809255fd7 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 10V, Negative-QTOF | splash10-0002-0090000000-dd82c6133109d0e6e28e | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 20V, Negative-QTOF | splash10-00l2-0090000000-66e609af1e31bb237106 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 40V, Negative-QTOF | splash10-00kb-0090000000-fc050b7ed710552a3f97 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 10V, Positive-QTOF | splash10-0ue9-0049000000-98a596f43e468044b417 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 20V, Positive-QTOF | splash10-0f89-5794000000-a3bbd4498b460f1ededa | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Methoxyestrone 40V, Positive-QTOF | splash10-0f6t-0960000000-f8b5386627dfc6028664 | 2021-10-12 | Wishart Lab | View Spectrum |
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| General References | - Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3. [PubMed:23455439 ]
- Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
- Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
- Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
- Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
- Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.
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