The molecule is a N-acylsphingosine 1-phosphate(2-) in which the N-acyl group is specified as acetyl; major species at pH 7.3. It is a conjugate base of a N-acetylsphingosine 1-phosphate.
[(E,2S,3R)-2-acetamido-3-hydroxyoctadec-4-enyl] phosphate