1,4-Benzenediamine, N,N-diethyl-, sulfate 4-Amino-N,N-diethylaniline sulphate 6065-27-6 93-05-0 EINECS 227-995-6 N,N-Diethyl-1,4-benzenediamine sulfate p-Phenylenediamine, N,N-diethyl-, sulfate