The molecule is an anionic phospholipid that is the conjugate base of 15-methylhexadecasphinganine 1-phosphate, having an anionic phosphate group and a protonated amino group; major species at pH 7.3. It is a conjugate base of a 15-methylhexadecasphinganine 1-phosphate.
[(2S,3R)-2-azaniumyl-3-hydroxy-15-methylhexadecyl] phosphate