Exploring the Selectivity of Dibutyltin Dilaurate Catalyst in Isocyanate Reactions Abstract: Dibutyltin dilaurate (DBTL) is a widely used catalyst in isocyanate reactions, particularly in polyurethane (PU) synthesis. While known for its high activity, DBTL’s selectivity towards specific reactions, such as urethane formation versus allophanate or biuret formation, is a critical factor influencing the final properties...