The molecule is a primary ammonium ion resulting from the protonation of the amino group of beta-D-galactosyl-(1<->1')-sphinganine; major species at pH 7.3. It is a conjugate acid of a beta-D-galactosyl-(1<->1')-sphinganine.
[(2S,3R)-3-hydroxy-1-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoctadecan-2-yl]azanium