Sell Rimsulfuron

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Detailed Selling Lead Description
Common name: rimsulfuron
Chemical name:
N-[[(4,6-dimethoxy-2-pyrimidinyl) amino]carbonyl]-3-(ethylsulfonyl) -2-pyridinesulfonamide
Molecular formula: C14H17N5O7S2
Chemical class: pytimidinysulfonylurea herbicides
CAS no. : 122931-48-0

Form: colorless crystal
Melting point: 172-173oC
Vapour pressure: 1.5 x 10-3MPa (25oC)
Solubility in water: 10mg/L (25oC)
Solubility in solvents: insoluble in most organic solvents
Stability: on hydrolysis (25oC) , DT50 4.6d (pH 5) , 0.3d (pH 9)

Acute oral LD50 for rats: >5,000mg/kg
Acute dermal LD50 for rats: >2,000mg/kg
Inhalation for rats LC50: >5.4mg/L
Non-irritating to skin, moderately irritating to eyes

Effects on aquatic organisms: bluegill sunlight and rainbow trout >390mg/L, carp >900mg/L, sheephead minnow 110mg/L (96h) , daphnia EC50 >360mg/L (48h)
Effects on bees: LD50 (contact) >1005g/bee, (dietary) >1,000mg/kg
Effects on birds: bobwhite quail LD50 >2,000mg/kg, mallard ducks >2,000mg/kg
Effects on earthworms: LC50 >1,000mg/kg

Environmental fate:
Degraded rapidly in soil, predominantly via chemical pathways (microbial degradation plays a minor rode) . Major metabolite is [1-(3-ethylsulfonyl) -2-pyridinyl]-4,6-dimethoxy-2-pyrimidineamine
Rates of degradation are influenced by pH, and the compound is most stable in neutral pH soil and degrades more rapidly in alkaline and acidic soils

Mode of action:
Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis
of the essential amino acid valine and isoleucine, hence stopping cell division and plant growth. Crop selectivity derives from rapid, selective metabolism by contraction of the sulfonylurea group and ring migration and by hydroxylation on the pyrimidine ring, followed by glucose conjugation

Rimsulfuron is a post-emergence sulfonylurea herbicide that effectively controls most annual and perennial grasses and several broad-leaved weeds in maize, tomatoes and potatoes. It has a wide crop-safety margin under most conditions