Used as an effective flame retardant in engineering plastics, especially in polyamides (nylon) and polyesters. It decomposes upon heating to release non-flammable gases, which dilute oxygen and suppress combustion. The compound promotes char formation on the material surface, acting as a thermal barrier that reduces heat and mass transfer during burning. Commonly applied in electrical and electronic components, automotive parts, and textiles where high thermal stability and low smoke emission are required. It is often combined with other flame-retardant synergists to enhance performance without compromising mechanical properties.