Record Information
Version1.0
Creation Date2016-07-13 19:47:28 UTC
Update Date2016-07-20 20:59:54 UTC
LmdbLMDB00330
Secondary Accession NumbersNone
Metabolite Identification
Common 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 ).
Structure
Thumb
Synonyms
ValueSource
(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
Chemical FormulaC27H46O2
Average Molecular Weight402.6529
Monoisotopic Molecular Weight402.349780716
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
Traditional Name24(S)-hydroxycholesterol
CAS Registry Number474-73-7
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
InChI Identifier
InChI=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
Chemical Taxonomy
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
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
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
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
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0076-1009000000-ab69a48110c4082d2ca7Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-001i-2111290000-94668570804377216a37Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f79-0009200000-0f92e092c978feb7ef4aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00kr-4119100000-6a8569b9873ebded521aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0c01-5049000000-3466fdb5c0a23399bea3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0003900000-db2e1b276e6052150b6fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0ue9-0009700000-55fe1a48489ad8aa8bb6Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00ri-7009000000-7a2a5d9fa1c30ba0c55bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00ku-0209100000-bfd7a93b49439544b96fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-090u-5459000000-c9b30378df2d7c3e159cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4l-6940000000-78cdb9ace90e3772c7c2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0000900000-079f76b4d985e4b92c9dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-0003900000-390ce6ee953a3d06105bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0002-0009000000-b4881863f9f5f7cd2223Spectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Plasma
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
PlasmaDetected but not QuantifiedNot ApplicableNot AvailableOvine details
PlasmaDetected but not QuantifiedNot ApplicableNot AvailablePorcine details
DrugBank IDNot Available
HMDB IDHMDB0001419
FooDB IDFDB022611
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG ID2197434
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID108790
ChEBI ID34310
PubChem Compound ID121948
Kegg Compound IDC13550
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [15061359 ]
  2. Lutjohann D, von Bergmann K: 24S-hydroxycholesterol: a marker of brain cholesterol metabolism. Pharmacopsychiatry. 2003 Sep;36 Suppl 2:S102-6. [14574622 ]