The glycerol backbone is found in those lipids known as glycerides. Soaps are formed from the reaction of glycerides with sodium hydroxide. Chemically, glyceryl behenate is a mixture of various esters of behenic acid and glycerol (glycerides). The ripe seeds contain fatty acid glycerides, especially laurodimyristin and trimyristin. This mixture is also sometimes referred to as partial glycerides. Most fats are glycerides, particularly triglycerides (triesters of glycerol). Partial glycerides may be monoglycerides (two hydroxyl groups free) or diglycerides (one hydroxyl group free).