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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

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Accession:CHEBI:17689 term browser browse the term
Definition:A phosphosphingolipid consisting of sphingosine having a phosphocholine moiety attached to its primary hydroxyl group.
Synonyms:exact_synonym: (2S,3R,4E)-2-amino-3-hydroxyoctadec-4-en-1-yl 2-(trimethylammonio)ethyl phosphate
 related_synonym: Formula=C23H49N2O5P;   InChI=1S/C23H49N2O5P/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-23(26)22(24)21-30-31(27,28)29-20-19-25(2,3)4/h17-18,22-23,26H,5-16,19-21,24H2,1-4H3/b18-17+/t22-,23+/m0/s1;   InChIKey=JLVSPVFPBBFMBE-HXSWCURESA-N;   SMILES=CCCCCCCCCCCCC\\C=C\\[C@@H](O)[C@@H](N)COP([O-])(=O)OCC[N+](C)(C)C;   sphing-4-enine-1-phosphocholine;   sphingosylphosphocholine betaine;   sphingosylphosphorylcholine
 alt_id: CHEBI:15103;   CHEBI:26744;   CHEBI:9226
 xref: Beilstein:7342520;   LIPID_MAPS_instance:LMSP01060001;   PMID:14741383
 cyclic_relationship: is_conjugate_base_of CHEBI:52897;   is_conjugate_base_of CHEBI:58906

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19775
    role 19722
      biological role 19722
        molecular messenger 18305
          neurotransmitter 10916
            choline 3561
              choline ester 126
                phosphocholines 126
                  sphingosine-1-phosphocholine 0
                    sphingomyelin d18:1(1+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19775
    subatomic particle 19774
      composite particle 19774
        hadron 19774
          baryon 19774
            nucleon 19774
              atomic nucleus 19774
                atom 19774
                  main group element atom 19665
                    main group molecular entity 19665
                      s-block molecular entity 19432
                        hydrogen molecular entity 19427
                          hydrides 18757
                            inorganic hydride 17485
                              pnictogen hydride 17462
                                nitrogen hydride 17316
                                  azane 17025
                                    ammonia 17024
                                      organic amino compound 17023
                                        amino alcohol 1033
                                          aminodiol 163
                                            2-aminooctadecene-1,3-diol 117
                                              2-aminooctadec-4-ene-1,3-diol 117
                                                sphing-4-enine 117
                                                  sphingosine 117
                                                    sphingosine-1-phosphocholine 0
                                                      sphingomyelin d18:1(1+) 0
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