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Common Name
Pyributicarb
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中文通用名
稗草丹
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IUPAC
O-3-tert-butylphenyl 6-methoxy-2-pyridyl(methyl)thiocarbamate
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CAS
O-[3-(1,1-dimethylethyl)phenyl] (6-methoxy-2-pyridinyl)methylcarbamothioate
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CAS No.
88678-67-5
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Molecular Formula
C18H22N2O2S
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Molecular Structure
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Category
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Activity
Herbicide, fungicide
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Premix
Premix Parters: captan;
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Physical Properties
Molecular weight:330.4; Physical form:White crystals. Melting point:85.7-86.2 °C; Vapour pressure:0.269 mPa (40 °C); Solubility:In water 0.32 mg/l (20 °C). In methanol 28, acetone 780, ethanol 33, xylene 580, chloroform 390, ethyl acetate 560 (all in g/l, 20 °C).
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Toxicology
Oral:Acute oral LD50 for rats and mice >5000 mg/ kg. Percutaneous:Acute percutaneous LD50 for rats >5000 mg/kg. Non-irritating to eyes; slightly irritating to skin (rabbits). Non-sensitising to skin (guinea pigs). Inhalation: LC50 (4 h) for rats >6520 mg/m3.
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Environmental Profile
Ecotoxicology:
Daphnia: LC50 (3 h) >15 mg/l.Fish: LC50 (48 h) for carp 11 mg/l.
Environmental fate:
Soil:Half-life in paddy soil is 13-18 d. Koc 1885.Plant:Residues in the unpolished grain of rice plants harvested 113 and 119 days after treatment with pyributicarb (40 kg/ ha) were found to be less than the detectable limit (0.005 mg/ kg). WATER SOLUBILITY: 0.32 mg/l at 20° C
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Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)