RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0028821
RefMet nameCer 18:1;O2/13:0
Alternative nameCer(d18:1/13:0)
Systematic nameN-(tridecanoyl)-4E-sphingenine
SynonymsPubChem Synonyms
Sum CompositionCer 31:1;O2 View other entries in RefMet with this sum composition
Exact mass495.465144 (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
FormulaC31H61NO3View other entries in RefMet with this formula
Molecular descriptors
Molfile87477 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C31H61NO3/c1-3-5-7-9-11-13-15-16-17-18-20-22-24-26-30(34)29(28-33)32-31(35)27-25-23-21-19-14-12-10-8-6-4-2/h24,26,29-30,3
3-34H,3-23,25,27-28H2,1-2H3,(H,32,35)/b26-24+/t29-,30+/m0/s1
InChIKeyKIMGMTPZLJJVTP-INXZUHKUSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESCCCCCCCCCCCCC/C=C/[C@H]([C@H](CO)NC(=O)CCCCCCCCCCCC)O
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassCeramides
Sub ClassCer (Ceramides)
Distribution of Cer 18:1;O2/13:0 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 18:1;O2/13:0
External Links
Pubchem CID86269022
LIPID MAPSLMSP02019BHT
KEGG IDC00422
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 18:1;O2/13:0

Rxn IDKEGG ReactionEnzyme
R01350 Glycerol + Fatty acid <=> TriacylglycerolGlycerol acylhydrolase
R02250 Triacylglycerol + H2O <=> 1,2-Diacyl-sn-glycerol + Fatty acidtriacylglycerol acylhydrolase
R02251 Triacylglycerol + CoA <=> 1,2-Diacyl-sn-glycerol + Acyl-CoAacyl-CoA:1,2-diacyl-sn-glycerol O-acyltransferase
R05333 Phospholipid + 1,2-Diacyl-sn-glycerol <=> Lysophospholipid + TriacylglycerolPhospholipid:1,2-diacyl-sn-glycerol O-acyltransferase

Table of KEGG human pathways containing Cer 18:1;O2/13:0

Pathway IDHuman Pathway# of reactions
hsa00561 Glycerolipid metabolism 3
hsa01100 Metabolic pathways 1
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