1,6-Hexanediol (CAS 629-11-8) is a colorless, crystalline solid (melting point 42 °Cm e l t i n g space p o i n t space 42 space raised to the composed with power cap C??????? ????? 42 °?) with the formula HO(CH2)6OHcap H cap O open paren cap C cap H sub 2 close paren sub 6 cap O cap H??(??2)6??. It is highly soluble in water, hygroscopic, and acts as a versatile chemical intermediate, primarily used as a chain extender in polyurethanes, polyesters, coatings, and adhesives to enhance durability and flexibility.