| gptkbp:instanceOf | gptkb:chemical_compound gptkb:amino_alcohol
 
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                                | gptkbp:biosynthesized_from | serine palmitoyl-CoA
 
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                                | gptkbp:CASNumber | 123-78-4 
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                                | gptkbp:chemicalFormula | C18H37NO2 
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                                | gptkbp:chirality | S at C2, R at C3 
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                                | gptkbp:component | gptkb:sphingomyelin glycosphingolipids
 
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                                | gptkbp:contains_functional_group | hydroxyl group amino group
 
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                                | gptkbp:discoveredBy | Johann Ludwig Wilhelm Thudichum 
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                                | gptkbp:foundIn | fungi plants
 cell membranes
 animal tissues
 
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                                | gptkbp:has_double_bond | between C4 and C5 
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                                | gptkbp:heldBy | gptkb:lipid_signaling_molecule long-chain base
 
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                                | gptkbp:is_insoluble_in | gptkb:water 
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                                | gptkbp:is_metabolized_to | gptkb:sphingosine-1-phosphate 
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                                | gptkbp:isSolubleIn | organic solvents 
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                                | gptkbp:IUPACName | (2S,3R,4E)-2-aminooctadec-4-ene-1,3-diol 
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                                | gptkbp:meltingPoint | 102–104 °C 
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                                | gptkbp:molecularWeight | 299.50 g/mol 
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                                | gptkbp:predecessor | sphingolipids ceramide
 
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                                | gptkbp:role | cell signaling cell growth regulation
 apoptosis regulation
 
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                                | gptkbp:bfsParent | gptkb:glucocerebroside gptkb:sphingomyelin
 
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                                | gptkbp:bfsLayer | 8 
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                                | https://www.w3.org/2000/01/rdf-schema#label | sphingosine 
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