The molecule is a glycosphingolipid identical with alpha-galactosylceramide (alpha-GalCer) with the exception of the replacement of the C-2 carbonyl oxygen on the acyl chain with a sulfur atom. It has a role as an antigen. It is a thiocarboxamide and a glycosphingolipid. It derives from a 1-O-(alpha-D-galactosyl)-N-hexacosanoylphytosphingosine.
N-[(2S,3S,4R)-3,4-dihydroxy-1-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoctadecan-2-yl]hexacosanethioamide