Methyl (E)-2-((6-(2-cyanophenoxy)-4-pyrimidinyl)oxy)-alpha-(methoxymethylene)benzeneacetate; Pyroxystrobin;

Methyl (E)-2-{2-[6-(2-cyanophenoxy)pyrimidin-4-yloxy]phenyl}-3-methoxyacrylate

C₂₂H₁₇N₃O₅

Form White solid. Melting point 114-116℃.

Density 1.34 (20℃).

Solubility In water 6 mg/l (20℃).

Low solubility in hexane, n-octanol; moderate solubility in methanol, toluene, acetone; high solubility in ethyl acetate, acetonitrile, dichloromethane.

Oral Acute oral LD50 for male and female rats and mice >5000 mg/kg.

Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg.

Slight eye and skin irritation (rabbits). Not a skin sensitiser (guinea pigs).

Inhalation LC50 (4 h, nose only) for male rats 0.96, female rats 0.69 mg/l.

Controls the following pathogens: Erysiphe graminis, Puccinia spp., Leptosphaeria nodorum, Septoria tritici and Pyrenophora teres on temperate cereals; Pyricularia oryzae and Rhizoctonia solani on rice; Plasmopara viticola and Uncinula necator on vines; Sphaerotheca fuliginea and Pseudoperonospora cubensis on cucurbitaceae; Phytophthora infestans and Alternaria solani on potato and tomato; Mycosphaerella arachidis, Rhizoctonia solani and Sclerotium rolfsii on peanut; Monilinia spp. and Cladosporium carpophilum on peach; Pythium spp. and Rhizoctonia solani on turf; Mycosphaerella spp. on banana; Cladosporium caryigenum on pecan; Elsino?fawcettii, Colletotrichum spp. and Guignardia citricarpa on citrus; Colletotrichum spp. and Hemileia vastatrix on coffee.

Description: Off-white powder, free from visible extraneous matter;

Active Ingredient Content(w/w): ≥98%;

Water (w/w): ≤0.5%;

pH Range: 4.0~7.5;