Complete Collection of Polyurethane Catalysts 1、 Introduction to American Gas Product Numbering Company Product Numbering Products amine catalyst DABCO 33LVR A-33 33 33% diethylenediamine dipropylene glycol solution, industrial standard product. The chemical structure of triethylenediamine is unique, as it is a cage like compound with three ethylidenes connected to two nitrogen atoms. The structure of...