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 Pesticide>> Herbicides >> Bensulfuron-methyl
Bensulfuron-methyl
Status: ISO 1750 (approved)
IUPAC: α-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-o-toluic acid
CAS: 2-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]methyl]benzoic acid
Reg. No.: 99283-01-9
Formula: C15H16N4O7S
Activity: herbicides (pyrimidinylsulfonylurea herbicides)
Notes: When this substance is used as an ester or a salt, its identity should be stated, for example bensulfuron-methyl [83055-99-6].
Structure:
Bensulfuron-methyl APPLICATIONS
bensulfuron-methyl
Biochemistry Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis of the essential amino acids valine and isoleucine, hence stopping cell division and plant growth. Selectivity is due to rapid metabolism in the crop. Metabolic basis of selectivity reviewed (M. K. Koeppe & H. M. Brown, Agro-Food-Industry, 6, 9-14 (1995)). Mode of action Selective systemic herbicide, absorbed by the foliage and roots, with rapid translocation to the meristematic tissues. Uses Selective pre- and post-emergence control of annual and perennial weeds and sedges (e.g. Butomus umbellatus, Scirpus maritimus, Scirpus mucronatus, Alisma plantago-aquatica, Sparganium erectum, Cyperus spp., Typha spp., etc.) in continuously flooded rice, at 30-100 g/ha. Formulation types GR; WG; WP. Selected tradenames: 'Londax' (Du Pont); mixtures: 'Fujigrass' (+ esprocarb) (Du Pont, Syngenta); 'Kusastop' (+ indanofan) (Mitsubishi Chemical); 'Wolf-Ace' (+ mefenacet+ thiobencarb) (Kumiai); 'Zark' (+ mefenacet) (Du Pont, Kumiai, Nihon Bayer, Sankyo)
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