Record Information |
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Version | 2.0 |
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Created at | 2005-11-16 15:48:42 UTC |
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Updated at | 2024-09-17 15:41:17 UTC |
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NP-MRD ID | NP0000212 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | 2-Hydroxyestradiol |
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Description | 2-Hydroxyestradiol (2-OHE2), also known as estra-1,3,5(10)-triene-2,3,17beta-triol, is an endogenous steroid, catechol estrogen. 2-Hydroxyestradiol belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane. Thus, 2-hydroxyestradiol is considered to be a steroid molecule. It is a metabolite of estradiol, as well as a positional isomer of estriol. Transformation of estradiol to 2-hydroxyestradiol is a major metabolic pathway of estradiol in the liver. 2-Hydroxyestradiol is generated from estradiol via several cytochrome P450 enzymes. Specifically, CYP1A2 and CYP3A4 are the major enzymes catalyzing the 2-hydroxylation of estradiol. Conversion of estradiol into 2-hydroxyestradiol has been detected in the liver, uterus, breast, kidney, brain, and pituitary gland, as well as the placenta. 2-Hydroxyestradiol binds, with a low affinity, to estrogen receptors. 2-Hydroxyestradiol has approximately 7% and 11% of the affinity of estradiol at the estrogen receptors (ERs) ERalpha and ERbeta, respectively (PMID: 9048584 ). 2-Hydroxyestradiol is a catechol estrogen and in this regard bears some structural resemblance to the catecholamines dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline) (PMID: 447670 ). In accordance, 2-hydroxyestradiol has been found to interact with catecholamine systems. The steroid is known to compete with catecholamines for binding to catechol O-methyltransferase and tyrosine hydroxylase and to competitively inhibit these enzymes (PMID: 447670 ). Inactivity of COMT blocks inactivation of catechol hormones and catecholamine neurotransmitters. 2-Hydroxyestradiol is also reported to inhibit angiongensis and tumor cell growth (PMID: 9472688 ). |
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Structure | [H][C@@]12CC[C@H](O)[C@@]1(C)CC[C@]1([H])C3=C(CC[C@@]21[H])C=C(O)C(O)=C3 InChI=1S/C18H24O3/c1-18-7-6-11-12(14(18)4-5-17(18)21)3-2-10-8-15(19)16(20)9-13(10)11/h8-9,11-12,14,17,19-21H,2-7H2,1H3/t11-,12+,14-,17-,18-/m0/s1 |
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Synonyms | Value | Source |
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(17beta)-Estra-1,3,5(10)-triene-2,3,17-triol | ChEBI | 2-Hydroxyestradiol-17beta | ChEBI | 2-OH-e2 | ChEBI | 2-OH-Estradiol | ChEBI | (17b)-Estra-1,3,5(10)-triene-2,3,17-triol | Generator | (17Β)-estra-1,3,5(10)-triene-2,3,17-triol | Generator | 2-Hydroxyestradiol-17b | Generator | 2-Hydroxyestradiol-17β | Generator | (17b)-Estra-1,3, 5(10)-triene-2,3,17-triol | HMDB | (17beta)- Estra-1,3, 5 (10)-triene-2,3,17-triol | HMDB | 1,3,5(10)-Estratriene-2,3,17Beta-triol | HMDB | 17beta-2-Hydroxyestradiol | HMDB | 2,3,17b-Trihydroxyestra-1,3,5(10)-triene | HMDB | 2-Hydroxy-17beta-estradiol | HMDB | 2-Hydroxy-estradiol | HMDB | ECS | HMDB | Estra-1,3,5 (10)-triene-2,3,17.beta.-triol | HMDB | Estra-1,3,5(10)-triene-2,3,17-beta-triol | HMDB | Estra-1,3,5(10)-triene-2,3,17-triol (acd/name 4.0) | HMDB | Estra-1,3,5(10)-triene-2,3,17b-triol | HMDB | Estra-1,3,5(10)-triene-2,3,17beta-triol | HMDB | 2-Hydroxyestradiol-17 alpha | HMDB | 2-Hydroxyestradiol-17 beta | HMDB | 2-Hydroxyestradiol, (17alpha)-isomer | HMDB | 2-Hydroxyestradiol, 4-(14)C-labeled | HMDB |
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Chemical Formula | C18H24O3 |
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Average Mass | 288.3814 Da |
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Monoisotopic Mass | 288.17254 Da |
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IUPAC Name | (1S,10R,11S,14S,15S)-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2(7),3,5-triene-4,5,14-triol |
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Traditional Name | (1S,10R,11S,14S,15S)-15-methyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-2(7),3,5-triene-4,5,14-triol |
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CAS Registry Number | 362-05-0 |
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SMILES | [H][C@@]12CC[C@H](O)[C@@]1(C)CC[C@]1([H])C3=C(CC[C@@]21[H])C=C(O)C(O)=C3 |
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InChI Identifier | InChI=1S/C18H24O3/c1-18-7-6-11-12(14(18)4-5-17(18)21)3-2-10-8-15(19)16(20)9-13(10)11/h8-9,11-12,14,17,19-21H,2-7H2,1H3/t11-,12+,14-,17-,18-/m0/s1 |
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InChI Key | DILDHNKDVHLEQB-XSSYPUMDSA-N |
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Experimental Spectra |
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| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, 100%_DMSO, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
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| Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Chemical Shift Submissions |
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| Not Available | Species |
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Species of Origin | |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane. |
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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 | Estrane steroids |
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Direct Parent | Estrogens and derivatives |
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Alternative Parents | |
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Substituents | - Estrogen-skeleton
- 3-hydroxysteroid
- 2-hydroxysteroid
- Hydroxysteroid
- 17-hydroxysteroid
- Phenanthrene
- Tetralin
- 1-hydroxy-2-unsubstituted benzenoid
- Benzenoid
- Cyclic alcohol
- Secondary alcohol
- Polyol
- Organooxygen compound
- Alcohol
- Hydrocarbon derivative
- Organic oxygen compound
- Aromatic homopolycyclic compound
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Molecular Framework | Aromatic homopolycyclic compounds |
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External Descriptors | |
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Physical Properties |
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State | Solid |
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Experimental Properties | Property | Value | Reference |
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Melting Point | 190 - 191 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Predicted Properties | |
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