(Tetralyl-6')-2 propanediamine-1,2 1,2-Propanediamine, 2-(5,6,7,8-tetrahydro-2-naphthyl)- 2-(5,6,7,8-Tetrahydro-2-naphthyl)-1,2-propanediamine 69440-56-8 BRN 2805716