has functional parent N-(octadecanoyl)hexadecasphingosine-1-phosphocholine (2S,3R,4E)-3-hydroxy-2-(octadecanoylamino)hexadec-4-en-1-yl 2-(trimethylazaniumyl)ethyl phosphate 702.568 703.030 A sphingomyelin 34:1 obtained by formal condensation of the carboxy group of octadecanoic acid with the amino group of hexadecasphingosine-1-phosphocholine. C(CCCCCCCC)CC\C=C\[C@@H](O)[C@@H](NC(CCCCCCCCCCCCCCCCC)=O)COP(OCC[N+](C)(C)C)(=O)[O-] C39H79N2O6P CHEBI:136273 InChI=1S/C39H79N2O6P/c1-6-8-10-12-14-16-18-19-20-21-23-25-27-29-31-33-39(43)40-37(36-47-48(44,45)46-35-34-41(3,4)5)38(42)32-30-28-26-24-22-17-15-13-11-9-7-2/h30,32,37-38,42H,6-29,31,33-36H2,1-5H3,(H-,40,43,44,45)/b32-30+/t37-,38+/m0/s1 LIPID_MAPS_instance:LMSP03010042 N-(octadecanoyl)hexadecasphing-4-enine-1-phosphocholine OQCPQFVKIYWGRP-GWQJGLRPSA-N Reaxys:20856792 SM(d16:1/18:0) chebi_ontology sphingomyelin d16:1/18:0 octadecanoic acid sphingomyelin 34:1