no significant difference between the various nitroimidazoles could be found in the dark reaction , but in the u.v.-irradiated system the order of reactivity ( misonidazole greater than benznidazole greater than metronidazole approximately equal to ornidazole ) was the same as the reported relative mutagenic , cytotoxic and radiosensitizing potency of the compounds .
C0028179
nitroimidazoles
C0025872
metronidazole