Fenarimol

Использование

Fenarimol is a broad spectrum pyrimidine carbinol fungicide with protective, curative and eradicative activities against powdery mildew (Erysiphe spp., Pudusphaera leucutricha, Uncinula necatur, Sphaerutheca spp., Leveillula spp.) and scab (Venturia spp.) in many crops. It also controls powdery mildew (Sphaerutheca pannusa) in ornamentals and Fusarium patch (Micruduccium niuale), Take-all patch (Laefisaria fuciformis), Dollar spot (Sderutina humeucavpa) and red thread (Gaeumannumyces graminis) in turf and amenity grasses.

Общее описание

Pure white crystalline solid. Used as a fungicide. Irritates skin and mucous membranes.

Профиль реактивности

Fenarimol produces toxic gases when heated to decomposition.

Профиль безопасности

Moderately toxic by ingestion. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Cland NOx.

Метаболический путь

The primary dissipation mechanism of fenarimol in the environment involves photolysis on plants/soil surfaces and water. More than 80 photoproducts have been observed, resulting from the reduction of the pyrimidine ring, hydrolysis, ring migration and cleavage of the phenyl and pyrimidine ring moieties. Under laboratory conditions in the dark, fenarimol is relatively persistent in soil, but a more rapid dissipation was observed under field conditions with DT₅₀ values of 18-140 days, attributed to photolysis of fenarimol on the soil surface. Fenarimol degrades in/on plant foliage/fruit surfaces mainly by photochemical processes. In animals, fenarimol is metabolised extensively to yield hydroxylated, cleavage and dechlorination products. The primary photolytic and metabolic pathways of fenarimol are presented in Schemes 1 and 2.