2,2''-((1-Methyl-4,4-diphenylbutylidene)bis(p-phenyleneoxy))bistriethylamine oxalate 26718-23-0 Ethanamine, 2,2'-((1-methyl-4,4-diphenylbutylidene)bis(4,1-phenyleneoxy))bis(N,N-diethyl-, ethanedioate SQ 10,591 SQ 10591