1,3-propanediamine, N,N'-diethyl-1,3-diphenyl- InChI=1/C19H26N2/c1-3-20-18(16-11-7-5-8-12-16)15-19(21-4-2)17-13-9-6-10-14-17/h5-14,18-21H,3-4,15H2,1-2H N,N'-diethyl-1,3-diphenylpropane-1,3-diamine