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Record Information
Version2.0
Created at2022-05-11 16:31:17 UTC
Updated at2022-05-11 16:31:18 UTC
NP-MRD IDNP0086797
Secondary Accession NumbersNone
Natural Product Identification
Common NameEpipregnanolone
DescriptionEpipregnanolone belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety. Thus, epipregnanolone is considered to be a steroid lipid molecule. Epipregnanolone is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Epipregnanolone was first documented in 1976 (PMID: 1265794). The 3beta-stereoisomer of 3-hydroxy-5beta-pregnan-20-one (PMID: 17583491) (PMID: 347637).
Structure
Thumb
Synonyms
ValueSource
(3beta,5beta)-3-Hydroxypregnan-20-oneChEBI
3beta-Hydroxy-5beta-pregnane-20-oneChEBI
3beta-Hydroxy-5beta-tetrahydroprogesteroneChEBI
(3b,5b)-3-Hydroxypregnan-20-oneGenerator
(3Β,5β)-3-hydroxypregnan-20-oneGenerator
3b-Hydroxy-5b-pregnane-20-oneGenerator
3Β-hydroxy-5β-pregnane-20-oneGenerator
3b-Hydroxy-5b-tetrahydroprogesteroneGenerator
3Β-hydroxy-5β-tetrahydroprogesteroneGenerator
3-Deoxo-3b-hydroxy-5b-dihydroprogesteroneHMDB
3b,5b-PregnanoloneHMDB
3b-Hydroxy-5b-pregnan-20-oneHMDB
5b-Pregnan-3b-ol-20-oneHMDB
5b-Pregnane-3b-hydroxy-20-oneHMDB
5b-Pregnane-3b-ol-20-oneHMDB
Pregnanolone IHMDB
3-Hydroxypregnan-20-oneHMDB
Pregnanolone, (3beta)-isomerHMDB
3 Hydroxypregnan 20 oneHMDB
3Β-hydroxy-5β-pregnan-20-oneHMDB
3-Deoxo-3beta-hydroxy-5beta-dihydroprogesteroneHMDB
3-Deoxo-3β-hydroxy-5β-dihydroprogesteroneHMDB
3beta,5beta-PregnanoloneHMDB
3beta-Hydroxy-5beta-pregnan-20-oneHMDB
3Β,5β-pregnanoloneHMDB
5beta-Pregnan-3beta-ol-20-oneHMDB
5beta-Pregnane-3beta-hydroxy-20-oneHMDB
5beta-Pregnane-3beta-ol-20-oneHMDB
5Β-pregnan-3β-ol-20-oneHMDB
5Β-pregnane-3β-hydroxy-20-oneHMDB
5Β-pregnane-3β-ol-20-oneHMDB
EpipregnanoloneChEBI
Chemical FormulaC21H34O2
Average Mass318.4935 Da
Monoisotopic Mass318.25588 Da
IUPAC Name1-[(1S,2S,5S,7R,10R,11S,14S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-yl]ethan-1-one
Traditional Name1-[(1S,2S,5S,7R,10R,11S,14S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-yl]ethanone
CAS Registry NumberNot Available
SMILES
[H][C@@]1(CC[C@@]2([H])[C@]3([H])CC[C@]4([H])C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)C(C)=O
InChI Identifier
InChI=1S/C21H34O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h14-19,23H,4-12H2,1-3H3/t14-,15+,16+,17-,18+,19+,20+,21-/m1/s1
InChI KeyAURFZBICLPNKBZ-GRWISUQFSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Anas platyrhynchosFooDB
AnatidaeFooDB
Anser anserFooDB
Bison bisonFooDB
Bos taurusFooDB
Bos taurus X Bison bisonFooDB
Bubalus bubalisFooDB
Capra aegagrus hircusFooDB
CervidaeFooDB
Cervus canadensisFooDB
ColumbaFooDB
ColumbidaeFooDB
Dromaius novaehollandiaeFooDB
Equus caballusFooDB
Gallus gallusFooDB
Lagopus mutaFooDB
LeporidaeFooDB
Lepus timidusFooDB
Melanitta fuscaFooDB
Meleagris gallopavoFooDB
Numida meleagrisFooDB
OdocoileusFooDB
OryctolagusFooDB
Ovis ariesFooDB
PhasianidaeFooDB
Phasianus colchicusFooDB
Struthio camelusFooDB
Sus scrofaFooDB
Sus scrofa domesticaFooDB
Chemical Taxonomy
Description Belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassPregnane steroids
Direct ParentGluco/mineralocorticoids, progestogins and derivatives
Alternative Parents
Substituents
  • Progestogin-skeleton
  • 20-oxosteroid
  • 3-hydroxysteroid
  • Hydroxysteroid
  • 3-beta-hydroxysteroid
  • Oxosteroid
  • Cyclic alcohol
  • Ketone
  • Secondary alcohol
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP4.28ALOGPS
logP3.99ChemAxon
logS-5.4ALOGPS
pKa (Strongest Acidic)18.3ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity92.91 m³·mol⁻¹ChemAxon
Polarizability38.26 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0001471
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022642
KNApSAcK IDNot Available
Chemspider ID198867
KEGG Compound IDC11825
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkEpipregnanolone
METLIN IDNot Available
PubChem Compound228491
PDB IDNot Available
ChEBI ID16229
Good Scents IDNot Available
References
General References
  1. Mickan H: Saturated metabolites of progesterone in human myometrium during pregnancy. Steroids. 1976 Jan;27(1):65-77. doi: 10.1016/0039-128x(76)90069-6. [PubMed:1265794 ]
  2. Hill M, Cibula D, Havlikova H, Kancheva L, Fait T, Kancheva R, Parizek A, Starka L: Circulating levels of pregnanolone isomers during the third trimester of human pregnancy. J Steroid Biochem Mol Biol. 2007 Jun-Jul;105(1-5):166-75. doi: 10.1016/j.jsbmb.2006.10.010. Epub 2007 May 16. [PubMed:17583491 ]
  3. Fisher JW, Adamson JW, Camiscoli JF, Fried W, Gordon AS, Schooley J, Zanjani E: Cooperative erythropoietic assay of several steroid metabolites in polycythemic mice. Steroids. 1977 Dec;30(6):833-45. doi: 10.1016/s0039-128x(77)80029-9. [PubMed:347637 ]