has functional parent sphinganine sphingomyelin N-acylsphinganine-1-phosphocholine 493.341 493.638 A sphingomyelin having sphinganine as the sphingoid component. C(C)CCCCCCCCCCCCC[C@H]([C@@H](NC(*)=O)COP(OCC[N+](C)(C)C)(=O)[O-])O C24H50N2O6PR CHEBI:67090 CHEBI:78648 Dihydrosphingomyelin N-acyl-dihydroceramide-1-phosphocholine N-acylsphinganine-1-phosphocholine PMID:19454763 chebi_ontology sphinganine-based sphingolipid