This product is an efficient catalyst for the formation reaction of polyurethane, with strong selectivity for the reaction between isocyanates and water. It is characterized by small amount and high catalytic activity, and can be used as the main catalyst for the production of flexible polyurethane foam and the auxiliary catalyst for the production of semi rigid and rigid polyurethane foam. In addition, it can also be used as a catalyst for the polymerization of oxidized olefins, phase transfer, and metal complexes. The composite form of this product, commonly known as AM-I, contains 70% ± 1% of pentamethyldiethylenetriamine. Its characteristic is that it can improve the tolerance during formula processing, enhance the foaming process performance and product quality.