78949-51-6

1,4-Benzenedicarbonyl dichloride,polymer with 2-chloro-1,4-benzenediamine and 4,4'-sulfonylbis[benzenamine]

1,4-Benzenedicarbonyl dichloride,polymer with 2-chloro-1,4-benzenediamine and 4,4'-sulfonylbis[benzenamine]