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Record Information
Version1.0
Created at2005-11-16 15:48:42 UTC
Updated at2020-11-24 22:14:04 UTC
NP-MRD IDNP0000256
Secondary Accession NumbersNone
Natural Product Identification
Common Name16-a-Hydroxypregnenolone
Description16-Alpha-hydroxypregnenolone, also known as (3beta,16alpha)-3,16-dihydroxypregn-5-en-20-one, is classified as a gluco/mineralocorticoid, a progestogin or aprogestogin derivative. Gluco/mineralocorticoids are steroids with a structure based on a hydroxylated prostane moiety. Thus, 16-alpha-hydroxypregnenolone is a steroid lipid molecule. 16-Alpha-hydroxypregnenolone is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). 16-Alpha-hydroxypregnenolone can be found primarily in blood, urine and in human umbilical cord tissue. Within the cell, 16-alpha-hydroxypregnenolone is primarily located in the membrane, and in the nucleus bound to cytoplasmic glucocorticoid receptors. 16-Alpha-hydroxypregnenolone exists in all vertebrates. 16-A-Hydroxypregnenolone is a normal urinary metabolite with increased total excretion in newborn infants with congenital adrenal hyperplasia due to 21-hydroxylase deficiency (PMID 6980322 ).
Structure
Thumb
Synonyms
ValueSource
(3beta,16alpha)-3,16-Dihydroxypregn-5-en-20-oneChEBI
16-alpha-HydroxypregnenoloneChEBI
(3b,16a)-3,16-Dihydroxypregn-5-en-20-oneGenerator
(3Β,16α)-3,16-dihydroxypregn-5-en-20-oneGenerator
16-Α-hydroxypregnenoloneGenerator
16 alpha-HydroxypregnenoloneHMDB
16-a-Hydroxy-pregnenoloneHMDB
16-alpha-Hydroxy-pregnenoloneHMDB
16alpha-HydroxypregnenoloneHMDB
3b,16a-Dihydroxypreg-5-en-20-oneHMDB
3b,16a-Dihydroxypregn-5-en-20-oneHMDB
3b,16a-Dihydroxypregnen-5-en-20-oneHMDB
5-Pregnene-3b,16a-diol-20-oneHMDB
Pregn-5-en-3b,16a-diol-20-oneHMDB
3 alpha,16 alpha-Dihydroxypregn-5-en-20-oneHMDB
3 beta,16 alpha-Dihydroxypregn-5-en-20-oneHMDB
3 beta,16 beta-Dihydroxypregn-5-en-20-oneHMDB
16a-HydroxypregnenoloneHMDB
16Α-hydroxypregnenoloneHMDB
16-a-HydroxypregnenoloneGenerator
Chemical FormulaC21H32O3
Average Mass332.4770 Da
Monoisotopic Mass332.23514 Da
IUPAC Name1-[(1S,2R,5S,10S,11S,13R,14R,15S)-5,13-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-14-yl]ethan-1-one
Traditional Name1-[(1S,2R,5S,10S,11S,13R,14R,15S)-5,13-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-14-yl]ethanone
CAS Registry Number520-88-7
SMILES
[H][C@@]12C[C@@H](O)[C@H](C(C)=O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@@H](O)CC[C@]12C
InChI Identifier
InChI=1S/C21H32O3/c1-12(22)19-18(24)11-17-15-5-4-13-10-14(23)6-8-20(13,2)16(15)7-9-21(17,19)3/h4,14-19,23-24H,5-11H2,1-3H3/t14-,15+,16-,17-,18+,19-,20-,21-/m0/s1
InChI KeyZAKJZPQDUPCXSD-YRWKUUEZSA-N
Spectra
Spectrum TypeDescriptionDepositor IDDeposition DateView
1D NMR1H NMR Spectrum (1D, 600 MHz, 100%_DMSO, experimental)Wishart Lab2021-06-20View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, 100%_DMSO, experimental)Wishart Lab2021-06-20View Spectrum
Species
Species of Origin
Species NameSourceReference
Anas platyrhynchos
Anatidae
Anser anser
Bison bison
Bos taurus
Bos taurus X Bison bison
Bubalus bubalis
Capra aegagrus hircus
Cervidae
Cervus canadensis
Columba
Columbidae
Dromaius novaehollandiae
Equus caballus
Gallus gallus
Lagopus muta
Leporidae
Lepus timidus
Melanitta fusca
Meleagris gallopavo
Numida meleagris
Odocoileus
Oryctolagus
Ovis aries
Phasianidae
Phasianus colchicus
Struthio camelus
Sus scrofa
Sus scrofa domestica
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-hydroxy-delta-5-steroid
  • 3-hydroxysteroid
  • 3-beta-hydroxysteroid
  • 16-hydroxysteroid
  • 16-alpha-hydroxysteroid
  • 3-beta-hydroxy-delta-5-steroid
  • Oxosteroid
  • Hydroxysteroid
  • Delta-5-steroid
  • Cyclic alcohol
  • Secondary alcohol
  • Ketone
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Carbonyl group
  • Alcohol
  • Organic oxide
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.057 g/LALOGPS
logP2.79ALOGPS
logP2.35ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)14.75ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity95.27 m³·mol⁻¹ChemAxon
Polarizability38.92 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0000315
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB021942
KNApSAcK IDNot Available
Chemspider ID4955002
KEGG Compound IDC06390
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID5304
PubChem Compound6452574
PDB IDNot Available
ChEBI ID771
Good Scents IDNot Available
References
General References
  1. Lee SH, Nam SY, Chung BC: Altered profile of endogenous steroids in the urine of patients with prolactinoma. Clin Biochem. 1998 Oct;31(7):529-35. [PubMed:9812172 ]
  2. Shibusawa H, Sano Y, Yamamoto T, Kambegawa A, Ohkawa T, Satoh N, Okinaga S, Arai K: A radioimmunoassay of serum 16alpha-hydroxypregnenolone with specific antiserum. Endocrinol Jpn. 1978 Apr;25(2):185-9. [PubMed:668632 ]
  3. Homoki J, Teller WM: Increased urinary excretion of total 16 alpha-hydroxypregnenolone in newborn infants with congenital adrenal hyperplasia due to 21-hydroxylase deficiency. Klin Wochenschr. 1982 Apr 15;60(8):407-10. [PubMed:6980322 ]
  4. Den K, Haruyama T, Hagiwara H, Fujii KT, Kambegawa A, Takami T, Yoshida T, Takagi S: Plasma levels of 16 alpha-hydroxypregnenolone, 16 alpha-hydroxyprogesterone and 16 alpha-hydroxydehydroepiandrosterone in the fetus and neonates. Endocrinol Jpn. 1979 Aug;26(4):439-47. doi: 10.1507/endocrj1954.26.439. [PubMed:159171 ]
  5. Janoski AH, Kelly WG: On the metabolism of 16-alpha-hydroxy-C21-steroids. II. Evidence for the presence of a glucuronide of 16-alpha-hydroxypregnenolone in human urine and its utility in estimating the rates of production of 16-alpha-hydroxyprogesterone and 16-alpha-hydroxypregnenolone. J Clin Endocrinol Metab. 1969 Oct;29(10):1291-300. doi: 10.1210/jcem-29-10-1291. [PubMed:5353659 ]