General methods for the synthesis of phenazine, its homologs and derivatives not containing condensed nuclei -- Phenazine and its homologs -- Hydrogenated derivatives of phenazine -- Substitution products of phenazine (excluding hydroxy and amino compounds) -- Hydroxy and keto derivatives of phenazine -- Amino derivatives of phenazine -- The safranines -- The indulines and nigrosines -- Aniline black -- The bacterial pigments -- The biological properties of phenazine and its derivatives -- Monobenzophenazines -- Hydroxy and amino derivatives of benzo[a]phenazines -- Hydroxy and amino derivatives of benzo[a]phenazinum salts -- Dibenzo- and mononaphtho-phenazines -- Polybenzophenazines -- Indanthrone and related compounds -- Phenazines condensed with other heterocyclic systems -- Phenazines condensed with other heterocyclic systems