Record Information
Version1.0
Creation date2011-09-21 00:16:51 UTC
Update date2015-07-21 06:57:16 UTC
Primary IDFDB022611
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name24-Hydroxycholesterol
Description24-Hydroxycholesterol (24OHC) is almost exclusively formed in the brain. The enzymatic conversion of CNS cholesterol to 24OHC, which readily crosses the blood-brain barrier, is the major pathway for brain cholesterol elimination and brain cholesterol homeostasis maintenance. The enzyme mediating this conversion has been characterized at the molecular level as cholesterol 24-hydroxylase (EC 1.14.13.98, CYP46) and is mainly located in neurons. Like other oxysterols, 24OHC is efficiently converted into normal bile acids or excreted in bile in its sulfated and glucuronidated form. Levels of 24OHC in the circulation decrease with age in infants and children. In adults, however, the levels appear to be stable. There is accumulating evidence pointing toward a potentially important link between cholesterol, beta-amyloid, and Alzheimer's disease. Patients with active demyelinating diseases had increased levels of 24OHC in cerebrospinal fluid (CSF). Patients with Alzheimer's disease have slightly increased levels of 24OHC in CSF. Patients with multiple sclerosis have a tendency to have higher levels of 24OHC during active periods. (PMID: 15061359, 14574622) [HMDB]
CAS Number474-73-7
Structure
Thumb
Synonyms
SynonymSource
(24S)-HydroxycholesterolChEBI
24S-Hydroxy-cholesterolChEBI
CerebrosterolChEBI
Cholest-5-en-3beta,24S-diolChEBI
Cholest-5-ene-3,24-diolChEBI
(24S)-24-HydroxycholesterolKegg
(24S)-Cholest-5-ene-3beta,24-diolKegg
Cholest-5-en-3b,24S-diolGenerator
Cholest-5-en-3β,24S-diolGenerator
(24S)-Cholest-5-ene-3b,24-diolGenerator
(24S)-Cholest-5-ene-3β,24-diolGenerator
24(S)-HydroxycholesterolHMDB
24S-Cholest-5-ene-3b,24-diolHMDB
24S-HydroxycholesterolHMDB
CerebrosterinHMDB
Cholest-5-ene-3b,24b-diolHMDB
(24S)-cholest-5-ene-3b,24-diolhmdb
(24S)-cholest-5-ene-3beta,24-diolhmdb
24-Hydroxycholesterolhmdb
24S-hydroxycholesterolhmdb
Predicted Properties
PropertyValueSource
Water Solubility0.0004 g/LALOGPS
logP5.7ALOGPS
logP5.8ChemAxon
logS-6ALOGPS
pKa (Strongest Acidic)18.2ChemAxon
pKa (Strongest Basic)-0.95ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area40.46 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity122.21 m³·mol⁻¹ChemAxon
Polarizability51.14 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC27H46O2
IUPAC name(1S,2R,5S,10S,11S,14R,15R)-14-[(2R,5S)-5-hydroxy-6-methylheptan-2-yl]-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-ol
InChI IdentifierInChI=1S/C27H46O2/c1-17(2)25(29)11-6-18(3)22-9-10-23-21-8-7-19-16-20(28)12-14-26(19,4)24(21)13-15-27(22,23)5/h7,17-18,20-25,28-29H,6,8-16H2,1-5H3/t18-,20+,21+,22-,23+,24+,25+,26+,27-/m1/s1
InChI KeyIOWMKBFJCNLRTC-XWXSNNQWSA-N
Isomeric SMILES[H][C@@]1(CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CC[C@H](O)C(C)C
Average Molecular Weight402.6529
Monoisotopic Molecular Weight402.349780716
Classification
Description belongs to the class of organic compounds known as dihydroxy bile acids, alcohols and derivatives. Dihydroxy bile acids, alcohols and derivatives are compounds containing or derived from a bile acid or alcohol, and which bears exactly two carboxylic acid groups.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassBile acids, alcohols and derivatives
Direct ParentDihydroxy bile acids, alcohols and derivatives
Alternative Parents
Substituents
  • 24-hydroxysteroid
  • Dihydroxy bile acid, alcohol, or derivatives
  • 3-beta-hydroxysteroid
  • 3-beta-hydroxy-delta-5-steroid
  • Hydroxysteroid
  • 3-hydroxysteroid
  • 3-hydroxy-delta-5-steroid
  • Delta-5-steroid
  • Cyclic alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
Physiological effect

Health effect:

Disposition

Route of exposure:

Biological location:

Source:

Process

Naturally occurring process:

Role

Biological role:

Industrial application:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0076-1009000000-ab69a48110c4082d2ca7JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-001i-2111290000-94668570804377216a37JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f79-0009200000-0f92e092c978feb7ef4aJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00kr-4119100000-6a8569b9873ebded521aJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0c01-5049000000-3466fdb5c0a23399bea3JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0003900000-db2e1b276e6052150b6fJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0ue9-0009700000-55fe1a48489ad8aa8bb6JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00ri-7009000000-7a2a5d9fa1c30ba0c55bJSpectraViewer
ChemSpider ID108790
ChEMBL IDCHEMBL171804
KEGG Compound IDC13550
Pubchem Compound ID121948
Pubchem Substance IDNot Available
ChEBI ID34310
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB01419
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG ID2197434
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
Pathways
NameSMPDB LinkKEGG Link
Bile Acid BiosynthesisSMP00035 map00120
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference