SEARCH Articles Figures Tables 1,2-Phenylenediamine 4-Chloro-o-phenylenediamine 4-Nitro-o-phenylenediamine Aniline, 2-nitrososynthesis via oxidation of o-phenylenediamine Benzimidazoles, from o-phenylenediamine Cyclization, l-methyl-3-ethyloxindole 2-methylquinoxaline from o-phenylenediamine Cyclization, l-methyl-3-ethyloxindole quinoxaline from o-phenylenediamine Glyoxal with o-phenylenediamines N-methyl-o-phenylenediamine O-Phenylenediamine O-Phenylenediamine O-Phenylenediamine, Reaction O-Phenylenediamines O-Phenylenediamines Of o-phenylenediamine Phenylenediamines Poly(m-Toluidine-co-o-Phenylenediamine) Poly(o-Phenylenediamine) (PPD) Spectrophotometric determination of selenium with o-phenylenediamine