Common additives are glycerol and sucrose. Triglycerides are synthesized by esterification of fatty acids to glycerol. Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. It is the mono-ester formed from glycerol and lauric acid. Nitroglycerin can be produced by acid-catalyzed nitration of glycerol (glycerin). Pyruvate can come from the breakdown of glucose, lactate, amino acids, or glycerol. Fats are triglycerides, made of assorted fatty acid monomers bound to glycerol backbone. Special-purpose greases contain glycerol and sorbitan esters. The cheaper diethylene glycol was relabeled as the more expensive glycerol. Fats are triglycerides, made of assorted fatty acid monomers bound to a glycerol backbone. All fats are derivatives of fatty acids and glycerol. Fats are constructed from glycerol and fatty acids. Addition of glycerol and processing of this soap produces glycerin soap. The compound was isolated during studies on reactions between glycerol and gaseous hydrogen chloride. An oxidation of glycerol affords mesoxalic acid.