1,8-naphthalenediamine, N,N,N',N'-tetramethyl- InChI=1/C14H18N2/c1-15(2)12-9-5-7-11-8-6-10-13(14(11)12)16(3)4/h5-10H,1-4H N,N,N',N'-tetramethylnaphthalene-1,8-diamine