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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:77833 term browser browse the term
Definition:A 1,2-diacyl-sn-glycero-3-phosphocholine in which the two acyl substituents at positions 1 and 2 are specified as palmitoyl and valeroyl respectively.
Synonyms:exact_synonym: (2R)-3-(hexadecanoyloxy)-2-(pentanoyloxy)propyl 2-(trimethylazaniumyl)ethyl phosphate
 related_synonym: (2R)-3-(palmitoyloxy)-2-(pentanoyloxy)propyl 2-(trimethylammonio)ethyl phosphate;   1-hexadecanoyl-2-pentanoyl-sn-glycero-3-phosphocholine;   Formula=C29H58NO8P;   InChI=1S/C29H58NO8P/c1-6-8-10-11-12-13-14-15-16-17-18-19-20-22-28(31)35-25-27(38-29(32)21-9-7-2)26-37-39(33,34)36-24-23-30(3,4)5/h27H,6-26H2,1-5H3/t27-/m1/s1;   InChIKey=GJOJUVBYCFSGJT-HHHXNRCGSA-N;   PC(16:0/5:0);   SMILES=CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCC
 xref: LIPID_MAPS_instance:LMGP01010672;   PMID:2040620;   Reaxys:4045295

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19787
    role 19734
      biological role 19734
        biochemical role 19282
          metabolite 19263
            eukaryotic metabolite 18908
              plant metabolite 17360
                hexadecanoic acid 517
                  1-palmitoyl-2-valeroyl-sn-glycero-3-phosphocholine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19787
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19672
                    p-block element atom 19672
                      chalcogen 19362
                        oxygen atom 19323
                          oxygen molecular entity 19323
                            hydroxides 19068
                              oxoacid 18193
                                pnictogen oxoacid 10146
                                  phosphorus oxoacid 9033
                                    phosphoric acids 7795
                                      phosphoric acid 7795
                                        phosphoric acid derivative 7474
                                          phosphate 7474
                                            organic phosphate 7473
                                              phospholipid 289
                                                glycerophospholipid 196
                                                  glycerophosphocholine 115
                                                    phosphatidylcholine 81
                                                      1,2-diacyl-sn-glycero-3-phosphocholine 23
                                                        1-palmitoyl-2-valeroyl-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.