Common Name3beta-hydroxy-5alpha-androstan-17-one
DescriptionEpiandrosterone is a naturally occurring steroid synthesized in the adrenal cortex, gonads, brain, and gastrointestinal tract. It is less active than androsterone and excreted in small amounts in normal human urine. Epiandrosterone is a metabolite of the most abundant adrenal androgenic steroid dehydroepiandrosterone (DHEA) in young adult humans, but is not completely inactive and is considered an effector as well. Epiandrosterone is a precursor or substrate for cytochrome P450 species and enzymes (EC 1.14.13.100, 25-hydroxycholesterol 7alpha-hydroxylase) that produce 7alpha- and 7beta-hydroxylated metabolites in the human brain and other organs. These 7-hydroxylated derivatives exert anti-glucocorticoid and neuroprotective effects (PMID: 17017935 , 12475725 , 15650074 , 15784286 ).
Structure
Molecular FormulaC19H30O2
Average Mass290.44030
Monoisotopic Mass290.22458
IUPAC Name(1S,2S,5S,10R,11S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-one
Traditional Name(1s,2s,5s,10r,11s,15s)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-one
CAS Registry Number481-29-8
SMILESC[C@]12CC[C@H](O)C[C@@H]1CC[C@@H]1[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]12
InChI IdentifierInChI=1S/C19H30O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h12-16,20H,3-11H2,1-2H3/t12?,13-,14-,15-,16-,18-,19-/m0/s1
InChI KeyQGXBDMJGAMFCBF-QRIARFFBSA-N
CHEBI IDCHEBI:541975
HMDB IDHMDB0000365
StateNot Available
Water Solubility6.34e-03 g/l
logP3.71
logS-4.66
pKa (Strongest Acidic)18.30
pKa (Strongest Basic)-1.36
Hydrogen Acceptor Count2
Hydrogen Donor Count1
Polar Surface Area37.3 Ų
Rotatable Bond Count0
Physiological Charge0
Formal Charge0
Refractivity83.81 m³·mol⁻¹
Polarizability34.70

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