overview of organotin catalyst t12 organotin catalyst t12 (chemical name: dibutyltin dilaurate) is a highly efficient catalyst widely used in polymerization, esterification, condensation and other fields. its chemical structure is [sn(c4h9)2(c11h23coo)2], which belongs to an organometallic compound. t12 has been widely used in industrial production due to its excellent catalytic properties and low toxicity, especially...