词条 | 氟磺唑草胺 |
释义 | 英文通用名称: Flumetsulam 中文通用名称: 氟唑嘧磺草胺 英文商品名称: Broadstrike[陶氏益农]; DE-498; XRD-498; Aurora;Preside,Scorpion 中文商品名称: 唑嘧磺草胺;阔草清[陶氏益农] 英文化学名称: N-(2,6-difluorophenyl)-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide 中文化学名称: 2-(2,6-二氟苯基磺酰胺基)-5-甲基-[1,2,4]-三唑[1,5a]嘧啶 性状描述: 灰白色无味固体,熔点251~253℃,蒸气压0.37nPa(25℃),密度1.77(21℃),溶 解度水中49mg/L(pH2.5溶解度随pH值升高),在丙酮、甲醇中轻微溶解,不溶 于二甲苯、己烷,水中光解6-12月,土中光解3个月。Composition:Form:Off-white odourless solid. M.p.: 251-253 ℃ B.p.: V.p.: 3.7 ×10 mPa (25 ℃) Henry: S.g./density: 1.77 (21 ℃) Solubility: In water 49 mg/l (pH 2.5; solubility increases with pH). Very slightly soluble in acetone and methanol. Insoluble in hexane and xylene.Stability: Aqueous photolysis DT50 6-12 mo. Soil photolysis DT50 3 mo. F.p.: >93 ℃ 毒理学性质:急性经口:>5000mg/kg;急性经皮:>2000mg/kg(兔)。Oral: Acute oral LD50 for rats >5000 mg/kg.Skin and eye Acute percutaneous LD50: for rabbits >2000. Non-sensitising to skin (guinea pigs). Slightly irritating to eyes (rabbits). Inhalation: (4 h) >1.2 mg/l.Birds: Acute oral LD50 for bobwhite quail >2250 mg/l. Eight-day dietary LC50 for bobwhite quail and mallard duck >5620 mg/l.Fish: LC50 (96 h) for silverside minnow >379 mg/l. Non-toxic to fathead minnow and bluegill sunfish.Bees: LC50 >100 μg/bee. NOEL 36 μg/bee.Daphnia: Non-toxic.Algae: Worms: Other aquatic spp.: LC50 for shrimp >349. 作用特点: 是ALS抑制剂,对烟草离体ALS酶I50值为0.02mg/kg。 用途:无论茎叶或土壤处理, 对大多数阔叶杂草、禾本科及莎草科杂草均有高度活性,土壤处理的杀草谱 更广。 |
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