the composition of lactosylceramide , trihexosylceramide , globoside , and hematoside was related to ceramide b and they contained about 60 % erythrosphingosine ( 18:1 ) , 25 % threosphingosine ( 18:1 ) , and 10 % dihydrosphingosine ( 18:0 ) .
C0017647
globoside
C0007745
ceramide