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啶蜱脲 毒性 用途:本品是苯甲酰基类杀虫杀螨剂,对害虫主要是胃毒及触杀作用,拟制昆虫几丁质合成,使幼虫蜕皮时不能形成新表皮,虫体成畸形而死亡。 用途:本品是苯甲基脲类杀虫剂,对害虫主要是胃毒及触杀作用,拟制昆虫几丁质和称,使幼虫蜕皮是不能形成新表皮,虫体成畸形而死亡。由于其高效、低毒及广谱的特点,可用于防治玉米,棉花,森林,水果和大豆上的鞘翅目,双翅目,鳞翅目害虫,对天敌无害。
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fluazuron. CAS RN [86811-58-7]. Common names fluazuron (BSI, pa E-ISO, INN) IUPAC name 1-[4-chloro-3-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenyl]-3-(2,6-difluorobenzoyl)urea CA name N -[[[4-chloro-3-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenyl]amino]carbonyl]-2,6-difluorobenzamide. Development codes CGA 157 419 (Ciba-Geigy) M.f. C20H10Cl2F5N3O3 Mol. wt. 506.2 Form White to pink, odourless, fine crystalline powder. M.p. 219 ºC (decomp.) V.p. 1.2 ´ 10-7 mPa (20 ºC) KOW logP = 5.1 (rp-tlc method) Henry <3.04 ´ 10-6 Pa m3 mol-1 (calc.) S.g./density 1.59 (20 ºC) Solubility In water <0.02 ppm (20 ºC). In methanol 2.4, isopropanol 0.9 (both in g/l, 20 ºC). Stability Stable up to 219 ºC. Hydrolysis DT50 (25 ºC) 14 d (pH 3), 7 d (pH 5), 20 h (pH 7), 0.5 h (pH 9). |