GREENSCIE Difenoconazole 95% TC
agricultural fungicide, fungicide for plants, Fungicide Difenoconazole 95% TC, Fungicide Azoxystrobin 98% TC
Difenoconazole 95%(Technical)
1. Common name: difenoconazole (BSI, draft E-ISO)
2. IUPAC name:
cis,trans-3-chloro-4-[4-methyl-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-2-yl]phenyl 4-chlorophenyl ether
3. Chemical Abstracts name:
1-[2-[2-chloro-4-(4-chlorophenoxy)phenyl]-4-methyl-1,3-dioxolan-2-ylmethyl]-1H-1,2,4-triazole
4. CAS RN: [119446-68-3] unstated stereochemistry Development codes CGA 169 374 (Ciba-Geigy)
5. Mode of action: Systemic fungicide with preventive and curative action. Absorbed by the leaves, with acropetal and strong translaminar translocation.
PHYSICAL CHEMISTRY
Composition Ratio of cis- to trans- isomers is in the range 0.7 to 1.5. Mol. wt. 406.3 M.f. C19H17Cl2N3O3 Form White to light beige crystals. M.p. 82.0-83.0℃ V.p. 3.3 10-5 mPa (25℃) KOW logP = 4.4 (25℃) Henry 1.5 ?10-6 Pa m3 mol-1 (calc.) S.g./density 1.40 (20℃) Solubility In water 15 mg/l (25℃). In ethanol 330, acetone 610, toluene 490, n-hexane 3.4, n-octanol 95 (all in g/l, 25℃). Stability Stable up to 150℃. Hydrolytically stable. pKa 1.1
COMMERCIALISATION
History Fungicide reported by W. Ruess et al. (Proc. 1988 Br. Crop Prot. Conf., 2, 543). Introduced in France (1989) by Ciba-Geigy (now Syngenta AG). Patents EP 65485 Manufacturers Syngenta
APPLICATIONS
Biochemistry Sterol demethylation inhibitor. Inhibits cell membrane ergosterol biosynthesis, stopping development of the fungus. Mode of action Systemic fungicide with preventive and curative action. Absorbed by the leaves, with acropetal and strong translaminar translocation. Uses Systemic fungicide with a novel broad-range activity protecting the yield and crop quality by foliar application or seed treatment. Provides long-lasting preventive and curative activity against Ascomycetes, Basidiomycetes and Deuteromycetes including Alternaria, Ascochyta, Cercospora, Cercosporidium, Colletotrichum, Guignardia, Mycosphaerella, Phoma, Ramularia, Rhizoctonia, Septoria, Uncinula, Venturia spp., Erysiphaceae, Uredinales and several seed-borne pathogens. Used against disease complexes in grapes, pome fruit, stone fruit, potatoes, sugar beet, oilseed rape, banana, cereals, rice, soya beans, ornamentals and various vegetable crops, at 30-125 g/ha. Used as a seed treatment against a range of pathogens in wheat and barley, at 3-24 g/100 kg seed.
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