Chlorsulfuron

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1.moq 100kg2.factory direct3.cas number64902-72-34.samples are available Chlorsulfuron is a systemic sulfonylurea herbicide for the selective pre- and post-emergence control of broad-leaved.PHYSICAL PROPERTIESMOLECULAR WEIGHT   357.8PHYSICAL STATE     White crystalline solid (pure compound) ; the technical material has a minimum purity of 95% (21h).ODOR                Odorless (pure compound)MELTING POINT      174-178 C (pure compound)DECOMPOSITION TEMPERATURE  192 C (pure compound)VAPOR PRESSURE     4.6 x 10-6 mmHg at 25 C (pure compound)SOLUBILITY         At 25 C  100-125 mg/l water (solution has pH 4.1),300 mg/l (at pH 5), 27.9 g/l (at pH 7) (purecompound).Molecular strcuture PRINCIPAL USES  Glean Weed Killer is recommended for selectivecontrol of weeds in wheat (pre- and/or postemergent to crop) and barley (postemergent to crop) as well as reduced tillage fallow preceding wheat.  Controls most broadleaf and some grass weeds at 1/6 and 1/2 ounce product/acre. Glean is intended for use on land having a soil pH of 7.5 or lower, and dedicated primarily to the production of wheat and barley. APPLICATION METHOD(S)  Preemergence or early postemergence treatments show the most activity on annual grass weeds and broadleaf weeds. Later postemergence treatments are effective on most broadleaf weeds but less effective on grasses.  Treatments may be made with aerial or ground equipment. EFFICACYImportant Weeds Controlled  Velvetleaf, pigweed, mustards, shepard's purse, lambsquarters, Canada thistle, sunflower, henbit, plantain, smartweed, curly dock, Russian thistle, chickweed, cocklebur and many others. It has activity on most broadleaf weeds and some annual grass weeds. Certain perennials like Cirsium arvense are sensitive.Wild oats, cheat and nightshade are tolerant of this material. Broadleaves are more susceptible than grasses.  Shallow incorporation may improve grass control but may also reduce broadleaf control.  Plant death is often slow. TOXICOLOGYACUTE TOXICITYDERMAL  LD50 = >3400 mg/kg (rabbit); not a skin irritant           (rabbit) or sensitizer (guinea pig) (31x).           LD50 = 3400 mg/kg (rabbit, techncal) (21h).           Very mild skin irritant (rabbit, formulated product                          - 75% chlorsulfuron) (21h).           LD50 = >2000 mg/kg (rabbit, formulated product - 75% chlorsulfuron ) (21h).ORAL    LD50 (technical chlorsulfuron) = 5545 mg/kg (male rat), 6293 mg/kg (female rat), 1363 mg/kg (guinea pig), >2500 mg/kg (dog) (21h).          LD50 = 3053 mg/kg (male rat), 2341 mg/kg (female rat) (Glean Weed Killer (31y).          LD50 (formulated product - 75% chlorsulfuron) = 4147 mg/kg (male rat), 2493 mg/kg (female rat) (21h).INHALATION  LC50 = >5.9 mg/l (rat, technical) (21h).EYES    Administration of 10 mg to rabbit eye produced very mild temporary conjunctival irritation (31x).Mild eye irritant (rabbit, formulated product - 75% chlorsulfuron) (21h).