overview: pc cat np40 chinese name: tris(dimethylaminopropyl)hexahydrotriazine molecular formula(formula): c18h42n6 molecular weight (molecular weight): 342.0 cas no.: 15875-13-5 physical and chemical properties pc cat np40 is a colorless to light yellow transparent liquid with a very faint odor or nearly odorless, easily soluble in water. relative density:0.92-0.95...