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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-05-09 21:04:05 UTC
Update Date2019-07-23 07:13:47 UTC
HMDB IDHMDB0060196
Secondary Accession Numbers
  • HMDB60196
Metabolite Identification
Common NameN-Retinylidene-N-retinylethanolamine
DescriptionN-Retinylidene-N-retinylethanolamine, also known as A2E or di-retinoid-pyridinium-ethanolamine, belongs to the class of organic compounds known as sesquiterpenoids. These are terpenes with three consecutive isoprene units. N-Retinylidene-N-retinylethanolamine is an extremely weak basic (essentially neutral) compound (based on its pKa).
Structure
Data?1563866027
Synonyms
ValueSource
A2EChEBI
Di-retinoid-pyridinium-ethanolamineChEBI
Chemical FormulaC42H58NO
Average Molecular Weight592.916
Monoisotopic Molecular Weight592.451840483
IUPAC Name2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-1-(2-hydroxyethyl)-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridin-1-ium
Traditional Name2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-1-(2-hydroxyethyl)-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridin-1-ium
CAS Registry Number147427-87-0
SMILES
C\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C1=[N+](CCO)C=CC(\C=C\C=C(/C)\C=C\C2=C(C)CCCC2(C)C)=C1
InChI Identifier
InChI=1S/C42H58NO/c1-32(20-22-39-35(4)17-12-25-41(39,6)7)14-10-16-34(3)30-38-31-37(24-27-43(38)28-29-44)19-11-15-33(2)21-23-40-36(5)18-13-26-42(40,8)9/h10-11,14-16,19-24,27,30-31,44H,12-13,17-18,25-26,28-29H2,1-9H3/q+1/b16-10+,19-11+,22-20+,23-21+,32-14+,33-15+,34-30+
InChI KeyWPWFMRDPTDEJJA-FAXVYDRBSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as sesquiterpenoids. These are terpenes with three consecutive isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassSesquiterpenoids
Direct ParentSesquiterpenoids
Alternative Parents
Substituents
  • Sesquiterpenoid
  • Cyclofarsesane sesquiterpenoid
  • Pyridine
  • Pyridinium
  • Heteroaromatic compound
  • Azacycle
  • Organoheterocyclic compound
  • Alkanolamine
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Alcohol
  • Organic cation
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00018 g/LALOGPS
logP5.87ALOGPS
logP5.56ChemAxon
logS-6.5ALOGPS
pKa (Strongest Acidic)14.4ChemAxon
pKa (Strongest Basic)-3.1ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area24.11 ŲChemAxon
Rotatable Bond Count11ChemAxon
Refractivity201.92 m³·mol⁻¹ChemAxon
Polarizability75.89 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+269.1930932474
DeepCCS[M-H]-267.36630932474
DeepCCS[M-2H]-300.60830932474
DeepCCS[M+Na]+274.79630932474
AllCCS[M+H]+262.432859911
AllCCS[M+H-H2O]+260.832859911
AllCCS[M+NH4]+263.932859911
AllCCS[M+Na]+264.332859911
AllCCS[M-H]-239.232859911
AllCCS[M+Na-2H]-243.932859911
AllCCS[M+HCOO]-249.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
N-Retinylidene-N-retinylethanolamineC\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C1=[N+](CCO)C=CC(\C=C\C=C(/C)\C=C\C2=C(C)CCCC2(C)C)=C15638.7Standard polar33892256
N-Retinylidene-N-retinylethanolamineC\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C1=[N+](CCO)C=CC(\C=C\C=C(/C)\C=C\C2=C(C)CCCC2(C)C)=C14950.5Standard non polar33892256
N-Retinylidene-N-retinylethanolamineC\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C1=[N+](CCO)C=CC(\C=C\C=C(/C)\C=C\C2=C(C)CCCC2(C)C)=C14902.5Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
N-Retinylidene-N-retinylethanolamine,1TMS,isomer #1CC1=C(/C=C/C(C)=C/C=C/C(C)=C/C2=CC(/C=C/C=C(C)/C=C/C3=C(C)CCCC3(C)C)=CC=[N+]2CCO[Si](C)(C)C)C(C)(C)CCC14927.7Semi standard non polar33892256
N-Retinylidene-N-retinylethanolamine,1TBDMS,isomer #1CC1=C(/C=C/C(C)=C/C=C/C(C)=C/C2=CC(/C=C/C=C(C)/C=C/C3=C(C)CCCC3(C)C)=CC=[N+]2CCO[Si](C)(C)C(C)(C)C)C(C)(C)CCC15128.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - N-Retinylidene-N-retinylethanolamine GC-MS (Non-derivatized) - 70eV, Positivesplash10-004i-1000090000-d130c41737e15e8355c62017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Retinylidene-N-retinylethanolamine GC-MS (1 TMS) - 70eV, Positivesplash10-0002-3000029000-4922f17a81045b7cb1f42017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Retinylidene-N-retinylethanolamine GC-MS ("N-Retinylidene-N-retinylethanolamine,1TMS,#1" TMS) - 70eV, PositiveNot Available2021-10-14Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Retinylidene-N-retinylethanolamine GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-10-15Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Retinylidene-N-retinylethanolamine 10V, Positive-QTOFsplash10-0006-0202590000-f4e28ac2d66009f6f3fa2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Retinylidene-N-retinylethanolamine 20V, Positive-QTOFsplash10-0zgl-0403910000-ef91fbc7a6e984318a6a2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Retinylidene-N-retinylethanolamine 40V, Positive-QTOFsplash10-0m16-0303940000-9be417d40ff593f6d2992017-10-06Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound11007064
PDB IDNot Available
ChEBI ID71980
Food Biomarker OntologyNot Available
VMH IDCE5747
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3. [PubMed:23455439 ]
  2. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  3. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  4. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  5. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  6. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.