City Chemical manufactures high purity Dibutyltin Sulfide, CAS 4253-22-9 in bulk quantity. Dibutyltin Sulfide is a sulfide that can be used as a catalytic agent in some polymerization reaction. Dibutyltin sulfide is a catalyst used in polyurethane systems. The high activity properties enable greater hydrolytic stability. It has better catalytic activity and water-tolerant stability than DBTDL in waterborne polyurethane pre-polymerization system and can decrease the pre-polymerization time.