Polarographic and cyclic voltammetric studies on 2-amino-4,6-dimetbyl-5-[4'-sulphonamoyl]azopyrimidines

Electrochemical behaviour of 2-amino-4,6-dimethyl-5-[4'-sulphonamoyl]azopyr imidines has been studied at DME and GC electrodes by employing techniques such as d.c. polarography, cyclic voltammetry and coulometry in Britton-Rob inson buffers (pH 2.8-11.5). The reduction gives one well-defined, irrevers ible and diffusion-controlled, 2-electron wave/peak corresponding to the re duction of -N=N- to -NH-NH-. The product obtained by constant current elect rolysis has been analysed and plausible mechanism for the reduction process is suggested. Effect of solvent composition has also been studied.