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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 04:01:29 UTC
Update Date2021-09-26 23:00:27 UTC
HMDB IDHMDB0249513
Secondary Accession NumbersNone
Metabolite Identification
Common NameN-Acetylsphinganine
DescriptionN-(1,3-dihydroxyoctadecan-2-yl)ethanimidic acid belongs to the class of organic compounds known as ceramides. These are lipid molecules containing a sphingosine in which the amine group is linked to a fatty acid. Based on a literature review very few articles have been published on N-(1,3-dihydroxyoctadecan-2-yl)ethanimidic acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). N-acetylsphinganine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically N-Acetylsphinganine is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
N-(1,3-Dihydroxyoctadecan-2-yl)ethanimidateGenerator
Chemical FormulaC20H41NO3
Average Molecular Weight343.552
Monoisotopic Molecular Weight343.308644184
IUPAC NameN-(1,3-dihydroxyoctadecan-2-yl)acetamide
Traditional NameN-(1,3-dihydroxyoctadecan-2-yl)acetamide
CAS Registry NumberNot Available
SMILES
CCCCCCCCCCCCCCCC(O)C(CO)NC(C)=O
InChI Identifier
InChI=1S/C20H41NO3/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-20(24)19(17-22)21-18(2)23/h19-20,22,24H,3-17H2,1-2H3,(H,21,23)
InChI KeyCRJGESKKUOMBCT-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as ceramides. These are lipid molecules containing a sphingosine in which the amine group is linked to a fatty acid.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSphingolipids
Sub ClassCeramides
Direct ParentCeramides
Alternative Parents
Substituents
  • Ceramide
  • Acetamide
  • Carboxamide group
  • Secondary alcohol
  • Secondary carboxylic acid amide
  • Carboxylic acid derivative
  • Alcohol
  • Hydrocarbon derivative
  • Organic oxide
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
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
logP5.2ALOGPS
logP4.59ChemAxon
logS-5ALOGPS
pKa (Strongest Acidic)13.82ChemAxon
pKa (Strongest Basic)-1.5ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area69.56 ŲChemAxon
Rotatable Bond Count17ChemAxon
Refractivity100.37 m³·mol⁻¹ChemAxon
Polarizability44.4 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+191.94530932474
DeepCCS[M-H]-188.72630932474
DeepCCS[M-2H]-223.70930932474
DeepCCS[M+Na]+200.030932474
AllCCS[M+H]+199.432859911
AllCCS[M+H-H2O]+196.832859911
AllCCS[M+NH4]+201.732859911
AllCCS[M+Na]+202.432859911
AllCCS[M-H]-191.932859911
AllCCS[M+Na-2H]-193.332859911
AllCCS[M+HCOO]-194.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
N-AcetylsphinganineCCCCCCCCCCCCCCCC(O)C(CO)NC(C)=O3273.9Standard polar33892256
N-AcetylsphinganineCCCCCCCCCCCCCCCC(O)C(CO)NC(C)=O2587.2Standard non polar33892256
N-AcetylsphinganineCCCCCCCCCCCCCCCC(O)C(CO)NC(C)=O2769.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
N-Acetylsphinganine,3TMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C)C(CO[Si](C)(C)C)N(C(C)=O)[Si](C)(C)C2807.5Semi standard non polar33892256
N-Acetylsphinganine,3TMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C)C(CO[Si](C)(C)C)N(C(C)=O)[Si](C)(C)C2786.4Standard non polar33892256
N-Acetylsphinganine,3TMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C)C(CO[Si](C)(C)C)N(C(C)=O)[Si](C)(C)C2718.9Standard polar33892256
N-Acetylsphinganine,3TBDMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C(C)(C)C)C(CO[Si](C)(C)C(C)(C)C)N(C(C)=O)[Si](C)(C)C(C)(C)C3505.2Semi standard non polar33892256
N-Acetylsphinganine,3TBDMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C(C)(C)C)C(CO[Si](C)(C)C(C)(C)C)N(C(C)=O)[Si](C)(C)C(C)(C)C3276.3Standard non polar33892256
N-Acetylsphinganine,3TBDMS,isomer #1CCCCCCCCCCCCCCCC(O[Si](C)(C)C(C)(C)C)C(CO[Si](C)(C)C(C)(C)C)N(C(C)=O)[Si](C)(C)C(C)(C)C3049.0Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0f6x-7942000000-3a241110f0454c9ca4b12021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_1_3) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_2_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_2_2) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TMS_2_3) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_1_3) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_2_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_2_2) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Acetylsphinganine GC-MS (TBDMS_2_3) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 10V, Positive-QTOFsplash10-0006-0009000000-eeb2fb8c9f40d0a86c142021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 20V, Positive-QTOFsplash10-00kf-0059000000-df60223f07dc0e83ab392021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 40V, Positive-QTOFsplash10-017i-0095000000-03415bcea7c82c71ab9e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 10V, Negative-QTOFsplash10-0006-0009000000-0f892288292e5c449cfa2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 20V, Negative-QTOFsplash10-0006-0019000000-dc2b5aefd77160165ca42021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - N-Acetylsphinganine 40V, Negative-QTOFsplash10-03do-1029000000-2787c3bc06bee6da16322021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
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 ID2411
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound2506
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]