N-[(2S,3S,4R)-1-(alpha-D-galactopyranosyloxy)-3,4-dihydroxyoctadecan-2-yl]undecanamide
1-O-(alpha-D-galactosyl)-N-undecanoylphytosphingosine is a glycophytoceramide having an alpha-D-galactopyranosyl residue at the O-1 position and an undecanoyl group attached to the nitrogen. It is functionally related to an alpha-D-galactose and an undecanoic acid.