RefMet Compound Details

RefMet ID, RefMet name, exact mass and formula
RefMet IDRM0031805
RefMet nameCerP 21:0;O2/18:0
Alternative nameCerP(d21:0/18:0)
Systematic nameN-(octadecanoyl)-heneicosasphinganine-1-phosphate
SynonymsPubChem Synonyms
Sum CompositionCerP 39:0;O2 View other entries in RefMet with this sum composition
Exact mass689.572327 (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
FormulaC39H80NO6PView other entries in RefMet with this formula
Molecular descriptors
Molfile88404 (Download molfile/View MW Metabolite Database details)
InChIInChI=1S/C39H80NO6P/c1-3-5-7-9-11-13-15-17-19-21-22-24-26-28-30-32-34-38(41)37(36-46-47(43,44)45)40-39(42)35-33-31-29-27-25-23-20-
18-16-14-12-10-8-6-4-2/h37-38,41H,3-36H2,1-2H3,(H,40,42)(H2,43,44,45)/t37-,38+/m0/s1
InChIKeyDGLVSCMTFLXTBE-QPPIDDCLSA-NView other enantiomers/diastereomers of this metabolite in RefMet
SMILESCCCCCCCCCCCCCCCCCC[C@H]([C@H](COP(=O)(O)O)NC(=O)CCCCCCCCCCCCCCCCC)O
Run Tanimoto similarity search (with similarity coefficient >=0.6)
Chemical/Biochemical Classification
Super ClassSphingolipids
Main ClassCeramides
Sub ClassCer-1-P (Ceramide-1-phosphates)
Distribution of CerP 21:0;O2/18:0 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 CerP 21:0;O2/18:0
External Links
Pubchem CID145715458
LIPID MAPSLMSP02059CVD
KEGG IDC02960
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 CerP 21:0;O2/18:0

Rxn IDKEGG ReactionEnzyme
R01495 ATP + N-Acylsphingosine <=> ADP + Ceramide 1-phosphateATP:ceramide 1-phosphotransferase
R06522 Ceramide 1-phosphate + H2O <=> N-Acylsphingosine + Orthophosphate3-sn-phosphatidate phosphohydrolase

Table of KEGG human pathways containing CerP 21:0;O2/18:0

Pathway IDHuman Pathway# of reactions
hsa00600 Sphingolipid metabolism 2
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