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Record Information
Version2.0
Created at2022-05-11 16:42:22 UTC
Updated at2022-05-11 16:42:23 UTC
NP-MRD IDNP0087181
Secondary Accession NumbersNone
Natural Product Identification
Common NameEtiocholanolone glucuronide
DescriptionEtiocholanolone glucuronide, also known as androsterone glucosiduronate, belongs to the class of organic compounds known as steroid glucuronide conjugates. These are sterol lipids containing a glucuronide moiety linked to the steroid skeleton. Thus, etiocholanolone glucuronide is considered to be a steroid conjugate lipid molecule. Etiocholanolone glucuronide is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. ETIO-G has much higher water solubility than etiocholanolone and is eventually excreted in the urine via the kidneys. Etiocholanolone glucuronide and uridine 5'-diphosphate can be biosynthesized from etiocholanolone and uridine diphosphate glucuronic acid; which is mediated by the enzyme UDP-glucuronosyltransferase 1-1. In humans, etiocholanolone glucuronide is involved in androstenedione metabolism. Etiocholanolone glucuronide (ETIO-G) is an endogenous, naturally occurring metabolite of testosterone. Along with androsterone glucuronide, it is one of the major inactive metabolites of testosterone. Etiocholanolone glucuronide is found in Apis cerana. Etiocholanolone glucuronide was first documented in 2002 (PMID: 12051338). It is formed in the liver from etiocholanolone by UDP-glucuronyltransferases.
Structure
Thumb
Synonyms
Chemical FormulaC25H38O8
Average Mass466.5644 Da
Monoisotopic Mass466.25667 Da
IUPAC Name(2S,3S,4S,5R,6R)-6-{[(1S,2S,5R,7R,10R,11S,15S)-2,15-dimethyl-14-oxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-5-yl]oxy}-3,4,5-trihydroxyoxane-2-carboxylic acid
Traditional Nameandrosterone glucuronide
CAS Registry NumberNot Available
SMILES
[H][C@@]12CCC(=O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC[C@]2([H])C[C@@H](CC[C@]12C)O[C@@H]1O[C@@H]([C@@H](O)[C@H](O)[C@H]1O)C(O)=O
InChI Identifier
InChI=1S/C25H38O8/c1-24-9-7-13(32-23-20(29)18(27)19(28)21(33-23)22(30)31)11-12(24)3-4-14-15-5-6-17(26)25(15,2)10-8-16(14)24/h12-16,18-21,23,27-29H,3-11H2,1-2H3,(H,30,31)/t12-,13-,14+,15+,16+,18+,19+,20-,21+,23-,24+,25+/m1/s1
InChI KeyVFUIRAVTUVCQTF-SDHZCXLISA-N
Experimental Spectra
Not Available
Predicted Spectra
Chemical Shift Submissions
Not Available
Species
Species of Origin
Chemical Taxonomy
Description Belongs to the class of organic compounds known as steroid glucuronide conjugates. These are sterol lipids containing a glucuronide moiety linked to the steroid skeleton.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassSteroidal glycosides
Direct ParentSteroid glucuronide conjugates
Alternative Parents
Substituents
  • Steroid-glucuronide-skeleton
  • Androstane-skeleton
  • Oxosteroid
  • 17-oxosteroid
  • 1-o-glucuronide
  • O-glucuronide
  • Glucuronic acid or derivatives
  • Hexose monosaccharide
  • Glycosyl compound
  • O-glycosyl compound
  • Beta-hydroxy acid
  • Monosaccharide
  • Pyran
  • Oxane
  • Hydroxy acid
  • Ketone
  • Secondary alcohol
  • Acetal
  • Carboxylic acid derivative
  • Carboxylic acid
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Monocarboxylic acid or derivatives
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic oxide
  • Carbonyl group
  • Organooxygen compound
  • Alcohol
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic 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
logP2.06ALOGPS
logP2.32ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.47ChemAxon
pKa (Strongest Basic)-3.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area133.52 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity116.09 m³·mol⁻¹ChemAxon
Polarizability50.37 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0004484
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB023376
KNApSAcK IDNot Available
Chemspider ID391377
KEGG Compound IDC11136
BioCyc IDBeta-D-Glucuronides
BiGG ID2304848
Wikipedia LinkEtiocholanolone glucuronide
METLIN ID7064
PubChem Compound443078
PDB IDNot Available
ChEBI ID37451
Good Scents IDNot Available
References
General References
  1. Nakazono T, Kashimura S, Hayashiba Y, Hisatomi T, Hara K: Identification of human urine stains by HPLC analysis of 17-ketosteroid conjugates. J Forensic Sci. 2002 May;47(3):568-72. [PubMed:12051338 ]