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Ethoxysulfuron

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Chemical Identification | General Product Information | Physical & Safety Data
Chemical Identification
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Common Name
Ethoxysulfuron
中文通用名
乙氧磺隆
IUPAC
1-(4,6-dimethoxypyrimidin-2-yl)-3-(2-ethoxyphenoxysulfonyl)urea
CAS
2-ethoxyphenyl [[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]sulfamate
CAS No.
126801-58-9
Molecular Formula
C15H18N4O7S
Molecular Structure
General Product Information
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Category
Herbicides > Sulfonylurea Herbicides
Activity
Herbicide
Premix
Anilofos+Ethoxysulfuron
Physical & Safety Data
Edit
Physical Properties
Molecular weight:398.4; Physical form:White to beige powder. Melting point:144-147 °C; Vapour pressure:6.6 × 10-2 mPa; Henry constant:( calc.) 1.00 × 10-3 ( pH 5); 1.94 × 10-5 ( pH 7); 2.73 × 10-6 ( pH 9) Pa m3 mol-1 (20 °C); Partition coefficient(n-octanol and water):logP = 2.89 ( pH 3), 0.004 ( pH 7), -1.2 ( pH 9) (20 °C); Solubility:In water 26 ( pH 5), 1353 ( pH 7), 9628 ( pH 9) ppm (20 °C).; Stability:Hydrolytic DT50 65 d ( pH 5), 259 d ( pH 7), 331 d ( pH 9).
Toxicology
Oral:Acute oral LD50 for rats >3270 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats <4000 mg/kg. Not irritating to eyes or skin (rats). ADI:( JMPR) 0.005 mg/ kg b.w.[1998].
Environmental Profile
Environmental fate: 
Soil:In lab. tests, DT50 in biologically active soil is c. 18-20 d. Under paddy conditions, DT50 is 10-60 d.
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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