Azoxystrobin

Common name: azoxystrobin (BSI, pa ISO)
CAS RN: [131860-33-8] formerly [215934-32-0]

PHYSICAL CHEMISTRY
Mol. wt.: 403.4 M.f. C22H17N3O5
Form: White solid.
M.p.: 116 °C (tech., 114-116 °C)
V.p.: 1.1 ?10-7 mPa (20 °C)
KOW logP = 2.5 (20 °C)
Henry: 7.3 ?10-9 Pa m3 mol-1 (calc.)
S.g./density: 1.34 (20 °C)
Solubility In water: 6 mg/l (20 ºC). Low solubility in hexane, n-octanol; moderate solubility in methanol, toluene, acetone; high solubility in ethyl acetate, acetonitrile, dichloromethane.
Stability: DT50 for aqueous photolysis 2 w. Stable to hydrolysis

APPLICATIONS
Mode of action: Fungicide with protectant, curative, eradicant, translaminar and systemic properties. Inhibits spore germination and mycelial growth, and also shows antisporulant activity.
Uses: Controls the following pathogens at application rates between 100 to 375 g a.i./ha: 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.
Phytotoxicity: Good crop safety, except on some varieties of apple (e.g. McIntosh, Cox).
Formulation types: SC, WG