Pyrogallol is a benzene triol compound described as a metal-complexing agent. Incubation of plasmid DNA with an NO-releasing NONOate and Pyrogallol demonstrated a synergistic induction of single-strand DNA breakage.;Pyrogallol is a benzene triol compound described as a metal-complexing agent. Incubation of plasmid DNA with an NO-releasing NONOate and Pyrogallol demonstrated a synergistic induction of single-strand DNA breakage.A metal-complexing benzene triol compound.