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Chemical Identification
Common Name
Pyroxasulfone
IUPAC
3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole
CAS
3-[[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl]sulfonyl]-4,5-dihydro-5,5-dimethylisoxazole
CAS No.
447399-55-5
Molecular Formula
C12H14F5N3O4S
Molecular Structure
Category
Activity
Pyroxasulfone is an isoxazoline compound. Pyroxasulfone is considered to be a seedling shoot growth inhibitor and the primary target enzyme is very long chain fatty acid elongase. It inhibits several fatty acid elongation steps for shoot formation and cell proliferation in the plants. Pyroxasulfone also interferes with new plant growth at the apical meristem and the coleoptile. Weed control with pyroxasulfone is primarily from preemergence application to the weed population.
CropUse

herbicide for maize, soybeans & wheat

Formulation
WG = Water dispersible granules
Premix
Pyroxasulfone+fluthiacet-methyl
Flumioxazin+Pyroxasulfone
Flumioxazin+Pyroxasulfone+Chlorimuron
Environmental Profile
Bobwhite Quail and Mallard Duck Oral Oral             LD50>2250 mg/kg
Bobwhite Quail and Mallard Duck Dietary Dietary   LC50>5620 ppm
Bluegill Sunfish                                                              LC50 > 2.8 mg/L
Rainbow Trout                                                                LC50 > 2.2 mg/L
Daphnia magna                                                             EC50 > 4.4 mg/L
Oyster Shell Deposition                                                EC50 > 3.6 mg/L
Sheepshead Minnow                                                    LC50 > 3.3 mg/L
Mysid Shrimp                                                                  LC50 > 1.4 mg/L
Honeybee Acute Contact                                              LC50 > 100 ug/bee

Porduct NewsMore

BASF's Zidua SC herbicide receives label changes for extended use in 2019

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BASF presents first results of Zidua herbicide in Argentina

Pyroxasulfone Saflufenacil

New Zealand approves Bayer’s Sakura 850 WG herbicide

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Two new herbicides developed by Summit Agro now available in Argentina

Flumioxazin Pyroxasulfone

New Zealand EPA receives Bayer’s two herbicides applications

Flufenacet+diflufenican Pyroxasulfone

Related CompaniesMore

Marshall Farms

Country:  United States