lipids extracted with chloroform : methanol mixtures included six series of ceramides ( 41 % of the total extractable lipid ) , cholesterol ( 27 % ) , cholesteryl esters ( 10 % ) , fatty acids ( 9 % ) , cholesteryl sulfate ( 1.9 % ) , a novel class of ceramide esters ( 3.8 % ) , and a sterol diester ( 0.9 % ) .
C0008377
cholesterol
C0008387
cholesteryl