Dicyandiamide (DCDA) is a white, crystalline, odorless powder with the chemical formula C₂H₄N₄. It is a highly pure nitrogen-rich compound derived from cyanamide and is used as a curing agent, intermediate, and flame retardant across multiple industries. DCDA is widely applied in the manufacture of epoxy resin curing agents, pharmaceuticals, water treatment chemicals, fertilizers, flame retardants, and plastic additives. It is non-volatile, stable under normal conditions, and water-soluble, making it a versatile material in both industrial and technical-grade applications.