nt cat t33 is a stannous caprylate catalyst used in the production of polyurethane foams. it is a clear, colorless liquid with a mild odor. nt cat t33 is compatible with many polyols and isocyanates. it is also non-corrosive and non-flammable. physical and chemical properties property value cas number 11207-74-9 molecular formula c12h22o8sn molecular weight 364.43 g/mole...