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Common NameChlorimuron-ethyl
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中文通用名氯嘧磺隆
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IUPACethyl 2-(4-chloro-6-methoxypyrimidin-2-ylcarbamoylsulfamoyl)benzoate
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CASethyl 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoate
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CAS No.90982-32-4
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Molecular FormulaC15H15ClN4O6S
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Molecular Structure
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Category
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CropUseUsed for selective post-emergence control of annual broadleaf, yellow nutsedge weed in peanuts and soybeans.
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PremixTribenuron-methyl+chlorimuron-ethyl
Rimsulfuron+chlorimuron-ethyl+mesotrione
MCPA-sodium+chlorimuron-ethyl
Chlorimuron-ethyl+thifensulfuron-methyl
Chlorimuron-ethyl+sulfentrazone
Chlorimuron-ethyl+metribuzin
Chlorimuron-ethyl+imazethapyr-ammonium
Chlorimuron-ethyl+flumioxazin+thifensulfuron-methyl
Chlorimuron-ethyl+flumioxazin
Chlorimuron-ethyl+acetochlor
carfentrazone-ethyl+chlorimuron-ethyl
Dry formulation. Premix Parters: ethephon; ethephon mepiquat chloride;
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Physical PropertiesMolecular weight:414.8; Physical form:Colourless crystals. Density:1.51 (25 °C); Composition:Tech. is >95%. Melting point:181 °C; Vapour pressure:4.9×10-7 mPa; Henry constant:1.7×10-10 Pa m3 mol-1; Partition coefficient(n-octanol and water):logP = 0.11 (pH 7); pKa:4.2; Solubility:In water 9 (pH 5), 1200 (pH 7) (both in mg/l, 25 °C). Low solubility in organic solvents.; Stability:In water DT50 17-25 d (pH 5, 25 °C). Low solubility in organic solvents.
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ToxicologyOral:Acute oral LD50 for rats 4102 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg. Not a skin irritant or eye irritant (rabbits). Not a skin sensitiser (guinea pigs). Inhalation:LC50 (4 h) for rats >5 mg/l air. ADI:0.16 mg/kg.
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Environmental ProfileEcotoxicology: Bees:LD50 (48 h) >12.5 μg/bee.Birds:Acute oral LD50(14 d) for mallard ducks >2510 mg/kg. Dietary LC50 for mallard ducks and bobwhite quail >5620 ppm.Daphnia:LC50 (48 h) 1000 mg/l.Fish:LC50 (96 h) for rainbow trout >1000 mg/l, bluegill sunfish >100 mg/l. Worms:LC50 for earthworms (Eisenia foetida) >4050 mg/kg.Other aquatic spp.:For Lemna gibba, EbC50 0.45 ppb, ErC5045
mg/l, EC50 (frond counts) 0.27 ppb. LC50d >1.60 (pH 4.5, 5.6% o.m.), 0.28 ( pH 5.8, 4.3 % o.m.), <0.03 (pH 6.5, 2.1% o.m.).
WATER SOLUBILITY: 1200 ppm at 25°C (pH 7) -
Transport InformationSignal Word:CAUTION; Hazard Class:III (Slightly hazardous)
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