N-acylsphinganine-1-phosphocholine sphingomyelin 44:0 N-hexacosanoylsphinganine-1-phosphocholine (2S,3R)-2-(hexacosanoylamino)-3-hydroxyoctadecyl 2-(trimethylammonio)ethyl phosphate 844.740 845.30980 A sphingomyelin 44:0 in which the N-acyl group and sphingoid base are specified as hexacosanoyl and sphinganine respectively. C49H101N2O6P CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)[C@H](O)CCCCCCCCCCCCCCC CHEBI:85022 InChI=1S/C49H101N2O6P/c1-6-8-10-12-14-16-18-20-21-22-23-24-25-26-27-28-29-31-33-35-37-39-41-43-49(53)50-47(46-57-58(54,55)56-45-44-51(3,4)5)48(52)42-40-38-36-34-32-30-19-17-15-13-11-9-7-2/h47-48,52H,6-46H2,1-5H3,(H-,50,53,54,55)/t47-,48+/m0/s1 JDLBFYGFHYCXMD-JYHRMSDVSA-N SM (d18:0/26:0) chebi_ontology