Cyazofamid is a member of the class of imidazoles carrying dimethylsulfamyl, cyano, chloro and 4-tolyl substituents at positions 1, 2, 4 and 5 respectively. A fungicide used mainly for controlling Oomycete and Plasmodiophora diseases on potatoes and tomatoes. It is a skin and eye irritant and is moderately toxic to birds, most aquatic organisms, honeybees and earthworms. It has a role as a mitochondrial cytochrome-bc1 complex inhibitor and an antifungal agrochemical. It is a nitrile, a member of imidazoles, an organochlorine compound, a member of sulfamides, a sulfonamide fungicide and an imidazole fungicide.