1,2-Benzenedicarboxylic acid, 4,4'-carbonylbis-, ar,ar'-diethyl ester, compd. with 4,4'-methylenebis(benzenamine) (1:1) 65701-06-6 Diethyl 4,4'-carbonylbis(hydrogen phthalate), compound with p,p'-methylenedianiline (1:1) EINECS 265-882-3 Skybond 1028