2-Hydroxy-3-aminophenazine (HAPh) gives stable redox active polymer (pHAPh) films after oxidative electropolymerization on Pt, Au, glassy carbon and ITO electrodes. pHAPh is a new ladder polymer with structures and redox properties closely related to those of poly(o-phenylenediamine) and poly(o-aminophenol). The electropolymerization of HAPh on Au is accompanied by electrodissolution of the Au substrate. Dissolved Au species are redeposited producing dispersed gold crystallites in the organic polymer film. The pHAPh film can respond to dissolved organic species, such as dihydroxybenzenes and p-benzoquinone, in the electroinactive potential range. For the oxidation of dihydroxybenzenes the rate controlling processes are all three contributary steps, i.e. charge transport and diffusion of substrate within the film and cross-exchange electron transfer reaction between the substrate and the redox sites of the film. For p-benzoquinone, the reduction process is solely governed by substrate diffusion within the film. RRDE measurements have shown that the dihydroxybenzenes are incorporated in the pHAPh film in the reduced state. There is also evidence that p-benzoquinone is also incorporated in the film when it is in the oxidized state.