White, crystalline solid or powder. Odorless.
Fosetyl-Al is an aluminium salt composed of ethyl phosphonate anions and aluminium cations in a 3:1 ratio. A fungicide for various horticultural crops used to control a range of diseases including Phytophthora, Pythium and Plasmopara. It has a role as an antifungal agrochemical. It contains a fosetyl(1-).