Hmdb loader
Record Information
Version5.0
StatusDetected and Quantified
Creation Date2008-08-06 14:56:15 UTC
Update Date2022-03-07 02:49:33 UTC
HMDB IDHMDB0006759
Secondary Accession Numbers
  • HMDB06759
Metabolite Identification
Common Name3a-Hydroxy-5b-pregnane-20-one
Description3alpha-Hydroxy-5beta-pregnane-20-one is an intermediate in C21-Steroid hormone metabolism. 3alpha-Hydroxy-5beta-pregnane-20-one is converted from 5beta-Pregnane-3,20-dione via the enzyme 3-alpha-hydroxysteroid dehydrogenase (EC 1.1.1.50). It is then converted to Pregnanediol via the enzyme 3alpha(or 20beta)-hydroxysteroid dehydrogenase (EC 1.1.1.53).
Structure
Data?1582752404
Synonyms
ValueSource
3alpha-Hydroxy-5beta-pregnane-20-oneHMDB
Chemical FormulaC21H34O2
Average Molecular Weight318.4935
Monoisotopic Molecular Weight318.255880332
IUPAC Name1-[(2S,5R,7R,14S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-14-yl]ethan-1-one
Traditional Namepregnanolone
CAS Registry NumberNot Available
SMILES
[H][C@]12CCC3C4CC[C@H](C(C)=O)[C@@]4(C)CCC3[C@@]1(C)CC[C@@H](O)C2
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-KCZNCWLVSA-N
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-alpha-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 DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.0014 g/LALOGPS
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
Polarizability38.36 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+173.03131661259
DarkChem[M-H]-172.86331661259
DeepCCS[M-2H]-223.39130932474
DeepCCS[M+Na]+198.61830932474
AllCCS[M+H]+183.332859911
AllCCS[M+H-H2O]+180.432859911
AllCCS[M+NH4]+185.932859911
AllCCS[M+Na]+186.632859911
AllCCS[M-H]-187.232859911
AllCCS[M+Na-2H]-187.732859911
AllCCS[M+HCOO]-188.532859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
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, 2022.7.47 minutes32390414
Predicted by Siyang on May 30, 202217.457 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.39 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2755.4 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid444.8 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid225.5 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid194.4 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid527.5 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid719.8 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid706.8 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)102.5 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid1346.5 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid495.6 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1610.9 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid419.8 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid466.4 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate263.7 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA443.5 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water12.6 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
3a-Hydroxy-5b-pregnane-20-one[H][C@]12CCC3C4CC[C@H](C(C)=O)[C@@]4(C)CCC3[C@@]1(C)CC[C@@H](O)C22278.9Standard polar33892256
3a-Hydroxy-5b-pregnane-20-one[H][C@]12CCC3C4CC[C@H](C(C)=O)[C@@]4(C)CCC3[C@@]1(C)CC[C@@H](O)C22660.8Standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one[H][C@]12CCC3C4CC[C@H](C(C)=O)[C@@]4(C)CCC3[C@@]1(C)CC[C@@H](O)C22834.6Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
3a-Hydroxy-5b-pregnane-20-one,1TMS,isomer #1CC(=O)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@@]21C2742.2Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,1TMS,isomer #2CC(O[Si](C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O)CC[C@]4(C)C3CC[C@]12C2764.7Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,1TMS,isomer #3C=C(O[Si](C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O)CC[C@]4(C)C3CC[C@@]21C2743.4Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #1CC(O[Si](C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@]12C2754.3Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #1CC(O[Si](C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@]12C2748.8Standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #1CC(O[Si](C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@]12C3115.8Standard polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #2C=C(O[Si](C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@@]21C2718.9Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #2C=C(O[Si](C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@@]21C2736.5Standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TMS,isomer #2C=C(O[Si](C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C)CC[C@]4(C)C3CC[C@@]21C3208.2Standard polar33892256
3a-Hydroxy-5b-pregnane-20-one,1TBDMS,isomer #1CC(=O)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@@]21C2989.8Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,1TBDMS,isomer #2CC(O[Si](C)(C)C(C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O)CC[C@]4(C)C3CC[C@]12C3021.5Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,1TBDMS,isomer #3C=C(O[Si](C)(C)C(C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O)CC[C@]4(C)C3CC[C@@]21C3010.0Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #1CC(O[Si](C)(C)C(C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@]12C3226.2Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #1CC(O[Si](C)(C)C(C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@]12C3256.6Standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #1CC(O[Si](C)(C)C(C)(C)C)=C1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@]12C3358.5Standard polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #2C=C(O[Si](C)(C)C(C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@@]21C3211.9Semi standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #2C=C(O[Si](C)(C)C(C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@@]21C3240.8Standard non polar33892256
3a-Hydroxy-5b-pregnane-20-one,2TBDMS,isomer #2C=C(O[Si](C)(C)C(C)(C)C)[C@H]1CCC2C3CC[C@@H]4C[C@H](O[Si](C)(C)C(C)(C)C)CC[C@]4(C)C3CC[C@@]21C3424.0Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one GC-MS (Non-derivatized) - 70eV, Positivesplash10-11du-0292000000-d5c96280786507060adf2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one GC-MS (1 TMS) - 70eV, Positivesplash10-01t9-1109000000-2c47b5bb98f0821612012017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 10V, Positive-QTOFsplash10-0uxr-0019000000-82b5328b4643c0421b0d2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 20V, Positive-QTOFsplash10-0uxr-1496000000-6fd25d5861771fb104b72017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 40V, Positive-QTOFsplash10-002o-2490000000-ba6e2bc4d584ea3d3a4b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 10V, Negative-QTOFsplash10-014i-0029000000-826f869c8c8e3739b52e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 20V, Negative-QTOFsplash10-014i-0059000000-699658e7c96cdaee62e82017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 40V, Negative-QTOFsplash10-0zmr-1092000000-9cb4a247b808ab6f5c272017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 10V, Negative-QTOFsplash10-014i-0009000000-bbaa566ea695ae62f84e2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 20V, Negative-QTOFsplash10-014i-0019000000-b27ed891ac6811eab39d2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 40V, Negative-QTOFsplash10-014i-0039000000-ee44f8ffc9f4d431f1b92021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 10V, Positive-QTOFsplash10-0uxr-0039000000-5b11ff3658bc22f27d0a2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 20V, Positive-QTOFsplash10-0j6v-0984000000-16637ba86fccb8e48e172021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3a-Hydroxy-5b-pregnane-20-one 40V, Positive-QTOFsplash10-0a4m-6950000000-17eb447f04784923dcfe2021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.00016 +/- 0.00018 uMAdult (>18 years old)FemaleNormal details
BloodDetected and Quantified0.00052 +/- 0.00042 uMAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB024063
KNApSAcK IDNot Available
Chemspider ID23141070
KEGG Compound IDC05480
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound24779614
PDB IDNot Available
ChEBI ID88767
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Catalyzes the transformation of the potent androgen dihydrotestosterone (DHT) into the less active form, 5-alpha-androstan-3-alpha,17-beta-diol (3-alpha-diol). Also has some 20-alpha-hydroxysteroid dehydrogenase activity. The biotransformation of the pesticide chlordecone (kepone) to its corresponding alcohol leads to increased biliary excretion of the pesticide and concomitant reduction of its neurotoxicity since bile is the major excretory route.
Gene Name:
AKR1C4
Uniprot ID:
P17516
Molecular weight:
37094.57
Reactions
3a-Hydroxy-5b-pregnane-20-one + NAD → 5a-Pregnane-3,20-dione + NADH + Hydrogen Iondetails
3a-Hydroxy-5b-pregnane-20-one + NADP → 5a-Pregnane-3,20-dione + NADPH + Hydrogen Iondetails