both globoside and forssman glycolipid of the non-epithelial tissue had non-hydroxy fatty acid ( c16-c24 ) in combination with sphingosine ( c18 ) as the ceramide components , in contrast with the ceramide structures of the epithelial glycolipids , which contained alpha-hydroxy fatty acids in combination with phytosphingosine .
C0017647
globoside
C0007745
ceramide