Abstract
Glycerol mono- and glycerol diethers were identified by thin layer chromatography in individual fractions of the polar lipids from human heart muscle. Since these substances were found in the polar lipid mixture, they presumably occur naturally as their phosphate esters. The fatty-acids and aldehydes of the polar lipids were converted to their methyl esters or dimethyl acetals, respectively. The methyl ester fraction contains saturated C16- and C18- and unsaturated C18-methyl esters. The acetal fraction contained C14- and C16-dimethyl acetals.