化学名称:N一(2,3-_7-氢一2,7-二甲基.苯并呋喃.6一甲酰基)一N’一特丁基.N’.(3,5二甲基苯甲酰基)肼;中文通用名:呋喃虫酰肼;试验代号:JSll8;商品名称:福先; CAS登记号:467427-81-1。 外观:白色粉末状固体;熔点:146.0—148.00C;溶-于有机溶剂,不溶于水。 2.毒性 呋喃虫酰肼原药对大鼠急性经口LDso>5000mg/kg(雄,雌),大鼠急性经皮LDso>5000 mg/kg(雄,雌)均属微毒类农药。眼刺激试验为1.5(1h),对眼无刺激(1:100稀释)。皮肤刺激试验为0(4h),对皮肤无刺激性。Ames试验无致基因突变作用。 对10%呋喃虫酰肼悬浮剂进行了鱼、蜜蜂、鹌鹑、家蚕等4种环境生物的毒性试验,结果如下:斑马鱼IEso(96h)48rag/L;蜜蜂LCso(48h)>500rag/L;鹌鹑LDso(7d)>5000m#kg体重;家蚕LCso(2龄)0.7mg/kg桑叶。 根据农药对环境生物的急性毒性及风险评价分级标准,10%呋喃虫酰肼悬浮剂对鱼、蜜蜂、鸟均为低毒,对家蚕高毒;对蜜蜂低风险,对家蚕极高风险,桑园附近严禁使用。 3.剂型 已成功开发10%呋喃虫酰肼悬浮剂,并在十字花科蔬菜上防治甜菜夜蛾取得登记。已完成其它新剂型和复配制剂的加工和实验室生测工作,正在申请大田药效试验。 4.作用机理与作用方式 呋喃虫酰肼作为含有苯并呋喃环的N一特丁基双酰肼类化合物,具有双酰肼类化合物所普遍具有的蜕皮激素调控作用。昆虫蜕皮激素的主要成份是类固醇激素20-羟基蜕皮素,这是节肢动物体内所特有的一种生长激素。当20-羟基蜕皮素浓度升高时,幼虫进入蜕皮阶段,此时幼虫停止进食,表皮细胞进行重组,通过与蜕皮激素受体蛋白紧密结合,激活受体蛋白,含有多种蛋白水解酶的蜕皮液进入蜕皮空间,表皮细胞增加蛋白质合成,生成新的上表皮和角质层。当20-羟基蜕皮素浓度降低时,昆虫发育进入下一阶段,包括蜕皮液中酶的活化、前表皮的消化和蜕皮液的再吸收。随着其浓度的进一步降低,完成蜕皮过程所需要的其它激素被释放出来,随之昆虫恢复进食。 CAS RN:[467427-81-1] Development codes:JS118 Chemical Abstracts name: 6-benzofurancarboxylic acid, 2,3-dihydro-2,7-dimethyl-2-(3,5-dimethybenzoyl)-2-(1,1-dimethylethyl)-hydrazide Biochemistry: Ecdysone agonist which acts by binding to the receptor site of the insect moulting hormone, ecdysone. Mode of action:Lethally accelerates moulting process. Formulation types: SC, WP Fufenozide is a novel insecticide with Intellectual Property, safe to natural enemy of insect, for example, acarid, bees, pulse wing item, and beetle. Lower toxicity to mammalian such as people, domestic animal, aves, fish and bees. Fufenozide is provide with high efficiency to all lepidopterous pests which is dangerous to agricultural production at present and it also can be used on crops and forest to prevention lepidopterous pests, cotton, nut, apple, sugar cane, orange, rice, vegetable and sugar beet and so on. Proved by test, it is uneasy for pest to bring fastness after using Fufenozide ,especially on plutella xylostella. This character not only ensures the efficiency, but also solute the problem which efficiency decreases after pesticide fastness appears.