sphingomyelin N-acylhexadecasphingosine-1-phosphocholine SM(d16:1/24:1(15Z)) 785.654 786.181 C45H90N2O6P CHEBI:89233 FOULCGVQZYQEQM-DNXGLLHMSA-O HMDB:HMDB0011694 InChI=1S/C45H89N2O6P/c1-6-8-10-12-14-16-18-19-20-21-22-23-24-25-26-27-29-31-33-35-37-39-45(49)46-43(42-53-54(50,51)52-41-40-47(3,4)5)44(48)38-36-34-32-30-28-17-15-13-11-9-7-2/h19-20,36,38,43-44,48H,6-18,21-35,37,39-42H2,1-5H3,(H-,46,49,50,51)/p+1/b20-19-,38-36+/t43-,44+/m0/s1 O(P(O)(=O)OCC[N+](C)(C)C)C[C@]([C@](\C=C\CCCCCCCCCCC)([H])O)([H])NC(CCCCCCCCCCCCC/C=C\CCCCCCCC)=O PMID:18502191 PMID:20671299 SPH(d16:1/24:1(15Z)) Sphingomyelin (d16:1/24:1(15Z)) chebi_ontology {[(2S,3R,4E)-3-hydroxy-2-[(15Z)-tetracos-15-enamido]hexadec-4-en-1-yl]oxy}[2-(trimethylazaniumyl)ethoxy]phosphinic acid