Glycerol Tridecanoate is also known as triacylglycerols or triacylglycerides. The triglycerides are rebuilt in the blood from their fragments and become constituents of lipoproteins which deliver the fatty acids to and from fat cells among other functions. Various tissues can release free fatty acids and take them up as a source of energy.

Cholesteryl palmitic acid is a cholesteryl ester. A cholesteryl ester is an ester of cholesterol. Fatty acid esters of cholesterol constitute about two-thirds of the cholesterol in the plasma. Cholesterol is a sterol (a combination of steroid and alcohol) and a lipid found in the cell membranes of all body tissues and transported in the blood plasma of all animals.

Enterobactin is a high-affinity siderophore that acquires iron for microbial systems.