overview: tetramethylpropanediamine (n,n,n’,n’-tetramethyl-1,3-propanediamine), a colorless to light yellow transparent liquid, it is soluble in water and alcohol, and its content is generally greater than 98%. used as a catalyst for polyurethane foams and microcellular elastomers, and also as a curing catalyst for epoxy resin chinese name tetramethylpropylenediamine english name n,n,n’,n’-tetramethyl-1,3-propanediamine (tmpda) don’t call n,n,n’,n’-tetramethyl-1,3-propanediamine, tmpda…