4,4'-DIAMINODIPHENYLAMINE SULFATE TECHNICAL GRADE4,4′-亚胺双苯胺 硫酸盐4,4′-Iminodianiline sulfate salt4,4′-二氨基二苯胺 硫酸盐4,4′-Diaminodiphenylamine sulfate saltN1-(4-Aminophenyl)-1,4-benzenediamine Sulfate Hydrate4,4'-Diaminodiphenylamine Sulfate Hydratep,p'-Diaminodiphenylamine Sulfate HydrateN-(4-Aminophenyl)-1,4-benzenediamine Sulfate Hydrate