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Common Name
MCPB-ethyl
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中文通用名
2甲4氯丁酸乙酯
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IUPAC
ethyl 4-(4-chloro-o-tolyloxy)butyrate
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CAS
ethyl 4-(4-chloro-2-methylphenoxy)butanoate
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CAS No.
10443-70-6
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Molecular Formula
C13H17ClO3
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Molecular Structure
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Category
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Activity
Herbicide, Plant growth regulator
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Physical Properties
Molecular weight:256.7; Physical form:Colourless liquid. Density:1.138; Melting point:-1 °C; Vapour pressure:1.9 × 10-1 mPa (20 °C); Henry constant:4.88 × 10-3 Pa m3 mol-1 (calc.); Partition coefficient(n-octanol and water):logP = 4.26; Solubility:In water 10 ppm (20 °C).; Stability:Unstable in alkali.;
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Toxicology
Oral:Acute oral LD50 for male rats 1780, female rats 1420, male mice 1160, female mice 1550 mg/ kg. Percutaneous:Acute percutaneous LD50 for male rats >4000 mg/ kg. Inhalation: LC50 for male rats 3.0-4.5, female rats >5.0 mg/l.
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Environmental Profile
Ecotoxicology: Daphnia: LC50 3.3 ppm.Fish: LC50 for carp 5.6 ppm.
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Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)