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Common NameButachlor
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中文通用名丁草胺
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IUPACN-butoxymethyl-2-chloro-2′,6′-diethylacetanilide
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CASN-(butoxymethyl)-2-chloro-N-(2,6-diethylphenyl)acetamide
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CAS No.23184-66-9
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Molecular FormulaC17H26ClNO2
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Molecular Structure
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Category
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ActivityBiochemistry Inhibits cell division by blocking protein synthesis. Mode of action Selective systemic herbicide, absorbed primarily by the germinating shoots, and secondarily by the roots, with translocation throughout the plant, giving higher concentrations in vegetative parts than in reproductive parts.
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CropUseUsed pre-emergence for the control of annual grasses and certain broad-leaved weeds in rice, both seeded and transplanted. It shows selectivity in barley, cotton, peanuts, sugar beet, wheat and several brassica crops.
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Weed SpectrumUsed pre-emergence for the control of annual grasses and certain broad-leaved weeds in rice, both seeded and transplanted.
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FormulationGR = Granule
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PremixPyrazosulfuron-ethyl+Clomazone+Butachlor
Pyrazosulfuron-ethyl+butachlor
Propanil+Butachlor
Oxyfluorfen+Butachlor
Butachlor+Prometryn
Butachlor+Penoxsulam
Butachlor+Oxyfluorfen+Oxadiazon
Butachlor+oxadiazon
Butachlor+Mesotrione+Atrazine
Butachlor+Atrazine
Bensulfuron-methyl+glyphosate+butachlor
Bensulfuron-methyl+butachlor+prometryn
Bensulfuron-methyl+butachlor+isoproturon
Bensulfuron-methyl+butachlor+acetochlor
Bensulfuron-methyl+butachlor
glyphosate; triasulfuron;
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Physical PropertiesMolecular weight:311.9; Physical form:Light yellow to purple liquid with a faint, sweet odour. Density:1.076 (25 °C); Composition:×93.5% pure. Melting point:-2.8 °C to 1.7 °C; Flash point:>135 °C (Tag closed cup); Vapour pressure:2.4 × 10-1 mPa (25 °C); Henry constant:3.74 × 10-3 Pa m3 mol-1 ( calc.); Solubility:In water 20 mg/l (20 °C). Soluble in most organic solvents, including diethyl ether, acetone, benzene, ethanol, ethyl acetate, and hexane.; Stability:Decomposes at ×165 °C. Stable to u.v. light. Stable indefinitely × 45 °C.;
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ToxicologyOral:Acute oral LD50 for rats 2000, mice 4747, rabbits >5010 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >13 000 mg/kg. Moderate skin irritant; practically non-irritating to eyes (rabbits). Contact sensitisation reactions observed in guinea pigs. Inhalation:LC50 (4 h) for rats >3.34 mg/l air. Phytotoxicity:Non-phytotoxic to rice, cotton, barley, wheat, peanuts, sugar beet, and some brassicas. ADI:( JMPR) 0.01 mg/kg [1999].
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Environmental ProfileEcotoxicology:
Bees:LD50 (contact) >100mg/bee.Birds:Acute oral LD50 for mallard ducks >4640 mg/kg. Dietary LC50 (5 d) for mallard ducks >10 000, bobwhite quail 6597 mg/kg diet.Daphnia: LC50 (48 h) 2.4 mg/l.Fish: LC50 (96 h) for rainbow trout 0.52, bluegill sunfish 0.44, carp 0.32, channel catfish 0.10-0.14, fathead minnow 0.31 mg/l.Other aquatic spp.:LC50 (96 h) for crayfish 26 mg/l.
Environmental fate:
Animals:Metabolised to water-soluble metabolites and excreted.Soil:In soil, degradation is principally by microbial activity (Y.-L. Chen and T.-C. Wu, Nippon Noyaku Gakkaishi, 1978, 3, 411). Persists for c. 6-10 weeks. Converted in soil or water to water-soluble derivatives, with a slowPlant:Rapidly metabolised in plants to water-soluble metabolites, leading eventually to mineralisation. -
Transport InformationSignal Word:CAUTION; Hazard Class:III(Slightly hazardous)
Porduct NewsMore
Bayer develops alternative to glyphosate herbicide
Colombia’s Constitutional Court bans chlorpyrifos
ADAMA Canada moves forward with lambda-cyhalothrin sales for 2023
Mexico: Import of glyphosate drops from 16,500 tons to 8,200 tons
Glyphosate prices drop 30% in Argentina
One year extension of EU glyphosate approval failed to pass in the latest meeting
Palmer amaranth in two southern U.S. states now resistant to S-metolachlor
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