CE(18:0) (CHEM039592)

IdentificationTaxonomyBiological PropertiesPhysical PropertiesToxicity ProfileSpectraConcentrationsLinksReferencesXML
Record Information
Version1.0
Creation Date2016-05-26 18:01:29 UTC
Update Date2016-11-09 01:22:06 UTC
Accession NumberCHEM039592
Identification
Common NameCE(18:0)
ClassSmall Molecule
DescriptionCE(18:0) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells.
Contaminant Sources
  • FooDB Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
ValueSource
cholesteryl 1-octadecanoateLipid Annotator, HMDB
CE(18:0)Lipid Annotator
cholesteryl 1-stearoateLipid Annotator, HMDB
18:0 cholesterol esterLipid Annotator, HMDB
cholesterol 1-octadecanoic acidLipid Annotator, HMDB
cholesteryl 1-stearoic acidLipid Annotator, HMDB
cholesterol 1-stearoic acidLipid Annotator, HMDB
Cholesterol Ester(18:0/0:0)Lipid Annotator, HMDB
1-stearoyl-cholesterolLipid Annotator, HMDB
CE(18:0/0:0)Lipid Annotator, HMDB
cholesteryl 1-octadecanoic acidLipid Annotator, HMDB
cholesterol 1-stearoateLipid Annotator, HMDB
Cholesterol Ester(18:0)Lipid Annotator, HMDB
1-octadecanoyl-cholesterolLipid Annotator, HMDB
cholesterol 1-octadecanoateLipid Annotator, HMDB
Chemical FormulaC45H80O2
Average Molecular Mass653.116 g/mol
Monoisotopic Mass652.616 g/mol
CAS Registry NumberNot Available
IUPAC Name(2R,5S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl octadecanoate
Traditional Name(2R,5S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl octadecanoate
SMILESCCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C
InChI IdentifierInChI=1S/C45H80O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25-43(46)47-38-30-32-44(5)37(34-38)26-27-39-41-29-28-40(36(4)24-22-23-35(2)3)45(41,6)33-31-42(39)44/h26,35-36,38-42H,7-25,27-34H2,1-6H3/t36-,38+,39?,40?,41?,42?,44+,45-/m1/s1
InChI KeyXHRPOTDGOASDJS-GHOVPUJYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as cholesteryl esters. Cholesteryl esters are compounds containing an esterified cholestane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassSteroid esters
Direct ParentCholesteryl esters
Alternative Parents
Substituents
  • Cholesteryl ester
  • Cholesterol
  • Cholestane-skeleton
  • Delta-5-steroid
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginNot Available
Cellular LocationsNot Available
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateNot Available
AppearanceNot Available
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility7.1e-06 g/LALOGPS
logP10.79ALOGPS
logP14.92ChemAxon
logS-8ALOGPS
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count23ChemAxon
Refractivity203.41 m³·mol⁻¹ChemAxon
Polarizability87.99 ųChemAxon
Number of Rings4ChemAxon
Bioavailability0ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00kr-6249068000-ee785941f0bb3c013c6cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0uxr-1165029000-0373520fbc92f70ffa9bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014r-4279031000-220079c7d605157ba25dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05di-5559050000-78cb4c481be0fce96ccdSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0024009000-a343fbe05158cf51ef8dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0049103000-b4d38340e7c8735f671eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014u-2029000000-b94be30721ca33c4b401Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0uy0-6039026000-a864f0dcf3b09c27b6c2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-052f-9110010000-77ddff83743564e0f5afSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052f-9100000000-d31e7fa7047e952eea7cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0020009000-1606e769e0750080b79bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-0013009000-534a78adc42bd32bb69bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0mii-5446798000-ef132f518e42ea3cbc9cSpectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Not Available
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0010368
FooDB IDFDB027520
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN ID5898
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID24769460
ChEBI IDNot Available
PubChem Compound ID53480457
Kegg Compound IDC02530
YMDB IDYMDB16199
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. Ekman S, Lundberg B: The transfer of lipids from protein-free lipoprotein models to human fibroblasts in culture. Biochim Biophys Acta. 1987 Sep 25;921(2):347-55.
2. Denke MA: Dietary fats, fatty acids, and their effects on lipoproteins. Curr Atheroscler Rep. 2006 Nov;8(6):466-71.
3. Mensink RP: Effects of stearic acid on plasma lipid and lipoproteins in humans. Lipids. 2005 Dec;40(12):1201-5.