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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:138211 term browser browse the term
Definition:A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at positions 1 and 2 are specified as octadecanoyl and pentanoyl respectively.
Synonyms:exact_synonym: (2R)-3-(octadecanoyloxy)-2-(pentanoyloxy)propyl 2-(trimethylazaniumyl)ethyl phosphate
 related_synonym: 1-stearoyl-2-pentanoyl-sn-glycero-3-phosphocholine;   1-stearoyl-2-valeryl-sn-glycero-3-phosphocholine;   Formula=C31H62NO8P;   InChI=1S/C31H62NO8P/c1-6-8-10-11-12-13-14-15-16-17-18-19-20-21-22-24-30(33)37-27-29(40-31(34)23-9-7-2)28-39-41(35,36)38-26-25-32(3,4)5/h29H,6-28H2,1-5H3/t29-/m1/s1;   InChIKey=MPCREWBYZXMEFD-GDLZYMKVSA-N;   PC(18:0/5:0);   SMILES=P(OC[C@@H](COC(CCCCCCCCCCCCCCCCC)=O)OC(=O)CCCC)(=O)(OCC[N+](C)(C)C)[O-];   phosphatidylcholine (18:0/5:0)
 xref: PMID:21926997;   Reaxys:29225581

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19785
    role 19732
      biological role 19732
        biochemical role 19281
          metabolite 19262
            eukaryotic metabolite 18906
              plant metabolite 17359
                valeric acid 14334
                  1-octadecanoyl-2-pentanoyl-sn-glycero-3-phosphocholine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19785
    subatomic particle 19782
      composite particle 19782
        hadron 19782
          baryon 19782
            nucleon 19782
              atomic nucleus 19782
                atom 19782
                  main group element atom 19670
                    p-block element atom 19670
                      chalcogen 19360
                        oxygen atom 19321
                          oxygen molecular entity 19321
                            hydroxides 19066
                              oxoacid 18192
                                pnictogen oxoacid 10144
                                  phosphorus oxoacid 9032
                                    phosphoric acids 7794
                                      phosphoric acid 7794
                                        phosphoric acid derivative 7473
                                          phosphate 7473
                                            organic phosphate 7472
                                              phospholipid 289
                                                glycerophospholipid 196
                                                  glycerophosphocholine 115
                                                    phosphatidylcholine 81
                                                      1,2-diacyl-sn-glycero-3-phosphocholine 23
                                                        1-octadecanoyl-2-pentanoyl-sn-glycero-3-phosphocholine 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.