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Common Name
Trimethacarb
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中文通用名
混杀威
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IUPAC
a reaction product comprising from 3.5 to 5 parts by mass of 3,4,5-trimethylphenyl methylcarbamate to 1 part by mass of 2,3,5-trimethylphenyl methylcarbamate
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CAS
2,3,5(or 3,4,5)-trimethylphenyl methylcarbamate
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CAS No.
12407-86-2
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Molecular Formula
C11H15NO2
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Molecular Structure
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Category
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Activity
Insecticide, molluscicide
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Physical Properties
Molecular weight:193.2; Physical form:Buff to brown, crystalline solid. Melting point:105-114 °C; Vapour pressure:6.8 mPa (25 °C); Solubility:In water >58 mg/kg (23 °C). Not readily soluble in organic solvents.; Stability:Decomposed by strong acids and alkalis. Stable to light.;
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Toxicology
Oral:Acute oral LD50 for rats 130 mg/kg. Percutaneous:Acute percutaneous LD50 for rats >2000 mg/kg. Phytotoxicity:Non-phytotoxic when used as directed. Phytotoxic to the seeds of some crops, including maize, sorghum, wheat, and rice.
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Environmental Profile
Ecotoxicology:
Bees:Toxic to bees, in spray formulations.Fish:Toxic to fish.
Environmental fate:
Animals:Metabolism of carbamate insecticides is reviewed (M. Cool & C. K. Jankowski in "Insecticides").Soil:Soil DT50 c. 60 d in sterile soil.Plant:In plants, metabolism occurs via hydroxylation of the N-methyl group and at the 3- and 4-methyl positions. All metabolites may be conjugated as glucosides.
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Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)