RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0170543
RefMet nameCer 18:0;O3/12:0
Alternative nameCer(t18:0/12:0)
Systematic nameN-(dodecanoyl)-4R-hydroxysphinganine
SynonymsPubChem Synonyms
Sum CompositionCer 30:0;O3 View other entries in RefMet with this sum composition
Exact mass499.460059 (neutral)
Calculate m/z:   
View other RefMet entries with this exact (neutral) mass:   +/- 0.05 amu   +/- 0.1 amu   +/- 0.2 amu   +/- 0.5 amu
FormulaC30H61NO4View other entries in RefMet with this formula
Molecular descriptors
Molfile87849 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C30H61NO4/c1-3-5-7-9-11-13-14-15-17-18-20-22-24-28(33)30(35)27(26-32)31-29(34)25-23-21-19-16-12-10-8-6-4-2/h27-28,30,32-3
3,35H,3-26H2,1-2H3,(H,31,34)/t27-,28+,30-/m0/s1
InChIKeyNGPJDSJKORHGMX-LXQNXJGFSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESCCCCCCCCCCCCCC[C@H]([C@H]([C@H](CO)NC(=O)CCCCCCCCCCC)O)O
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassCeramides
Sub ClassPhytoCer (Phytoceramides)
Distribution of Cer 18:0;O3/12:0 in NMDR studies
SpeciesPlot Species distribution
Sample sourcePlot Sample source(tissue) distribution
PlatformPlatform (MS/NMR) used for detection
ChromatographyChromatography methods used for detection
StudiesNMDR Studies reporting Cer 18:0;O3/12:0
External Links
Pubchem CID86289450
LIPID MAPSLMSP02039ALZ
ChEBI ID78001
KEGG IDC12126
Structural annotation level
Annotation level1   (1:Known structure; 2:Known regiochemistry; 3:Partial structure; 4:Sum-composition)

Table of KEGG reactions in human pathways involving Cer 18:0;O3/12:0

Rxn IDKEGG ReactionEnzyme
R06517 Acyl-CoA + Sphinganine <=> CoA + Dihydroceramideacyl-CoA:sphingosine N-acyltransferase
R06518 Dihydroceramide + H2O <=> Fatty acid + SphinganineN-acylsphingosine amidohydrolase
R06519 Dihydroceramide + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> N-Acylsphingosine + 2 Ferricytochrome b5 + 2 H2Odihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (4,5-dehydrogenating)
R06526 Dihydroceramide + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> Phytoceramide + 2 Ferricytochrome b5 + H2Odihydroceramide,ferrocytochrome b5:oxygen oxidoreductase (C4-hydroxylating)

Table of KEGG human pathways containing Cer 18:0;O3/12:0

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 4
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