The polarographic and voltammetric behaviour of 3-allyl-4-hydroxyazo benzene was studied at room temperature using various electrochemical techniques. In this study, the electrode reaction for the azo compound were investigated using SWV, DPP, DCP and CV. The reduction of the azo group to amino group in acidic media and hydrazo step in neutral and basic media was observed. From the observation an electrode reaction mechanism has been suggested for the compound. (C) 2003 Elsevier Ltd. All rights reserved.