Bismark brown R liquid

1,3-Benzenediamine, 4,4-1,3-phenylenebis(azo)bis-, diacetate

4,4'-[1,3-Phenylenebis(2,1-diazenediyl)]bis-1,3-benzenediamine acetate

1,3-Benzenediamine, 4,4'-(1,3-phenylenebis(2,1-diazenediyl))bis-, acetate (1:2)

Basic brown 4 liquid 1,3-benzenediamine 4,4'-(1,3-phenylenebis(azo))bis-diacetate