Hexamethylenediamine is an organic compound with the formula C6H16N2. It is a colorless, hygroscopic solid that is soluble in water and commonly used in the production of nylon, particularly Nylon 66. This compound is produced through the hydrogenation of adiponitrile, which is derived from petroleum. In addition to its role in nylon production, hexamethylenediamine is also used in the manufacture of coatings, adhesives, and various polymers. It serves as a building block for many chemical processes and can be found in some industrial applications due to its properties as a diamine.