2-Imidazolidinone is mainly used as anti-wrinkle finishing agent and deformaldehyde agent for fabrics, as cross-linking agent in rubber, resin, PA6, etc.; as formaldehyde removal agent in polyEVA, various water-based coatings, adhesives, pigments, paints, etc. Agent; added separately to paint to make the paint absorb and decompose formaldehyde; play a role in wetting, preventing clogging and dispersion in inkjet printing ink; chelating agent and formaldehyde absorber in photosensitive materials; used as a formaldehyde removal treatment agent in the paper industry. It is also the main component of various types of air fresheners and aldehyde removers, and an important intermediate for the artificial synthesis of penicillin.