Chlorimuron-ethyl
Chlorimuron-ethyl
  • CAS No.:90982-32-4
Other grades of this product :
Chlorimuron-ethyl Basic information
Description References
Product Name:Chlorimuron-ethyl
Synonyms:2-(((((4-chloro-6-methoxy-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)benzoica;ethyl2-(((((4-chloro-6-methoxpyrimidin-2-yl)aminol)carbonyl)amino)sulfonyl)benzoate;ethyl2-(((((4-chloro-6-methoxypyrimidin-2-yl)-amino)carbonyl)amino)sulfonyl)b;Ethyl2-(((((4-chloro-6-methoxypyrimidin-2-yl)amino)carbonyl)amino)sulfonyl)benzoate;ETHYL-2-[[[[(4-CHLORO-6-METHOXY-2-PYRIMIDINYL)AMINO]CARBONYL]AMINO]-SULFONYL] BENZOATE;DARBAN;DPX-F6025;Chlorimuron Et
CAS:90982-32-4
MF:C15H15ClN4O6S
MW:414.82
EINECS:618-690-2
Product Categories:HERBICIDE
Mol File:90982-32-4.mol
Chlorimuron-ethyl Chemical Properties
Melting point 180-182°C
density 1.4727 (rough estimate)
refractive index 1.6100 (estimate)
storage temp. Inert atmosphere,2-8°C
solubility Freely soluble in aqueous solution
pka3.78±0.10(Predicted)
form Solid
color White to Light Yellow
Water Solubility 1.018mg/L(temperature not stated)
Stability:Unstable in DMSO solution
InChIKeyNSWAMPCUPHPTTC-UHFFFAOYSA-N
CAS DataBase Reference90982-32-4(CAS DataBase Reference)
EPA Substance Registry SystemChlorimuron-ethyl (90982-32-4)
Safety Information
Hazard Codes Xi
Risk Statements 36
Safety Statements 26-36
RIDADR UN3077 (solid)
RTECS DG5095000
Hazardous Substances Data90982-32-4(Hazardous Substances Data)
ToxicityLD50 in male, female rats (mg/kg): 4102, 4236 orally (Claus)
Chlorimuron-ethyl Usage And Synthesis
DescriptionChlorimuron-ethyl is a kind of post-emergence, foliar applied herbicide which is used without the EU regulatory approval. As an herbicide belonging to the sulfonylurea family, it is commonly used to control the weeds associated with wheat, rice, soybean, barley, potato, and corn. It has advantages of being broad-spectrum, having low use rate, having good crop selectivity as well as being of low toxicity to animals. Its mechanism of action is through suppressing the plant- and microbial-specific enzyme acetolactate synthase (ALS), further blocking the biosynthesis of branched-chain amino acids such as valine, leucine and isoleucine. Through this mechanism, it cause rapid cessation of plant cell division and growth. 
Referenceshttp://sitem.herts.ac.uk/aeru/ppdb/en/Reports/1145.htm http://lfse.iae.ac.cn/Article/UploadFiles/201310/2013102910313432.pdf
Chemical PropertiesColorless to off white or pale yellow crystals or powder. Some formulations are listed as “flammable” in the literature. Odorless.
UsesHerbicide.
UsesChlorimuron-ethyl is used in weed control method as herbicide.
General DescriptionColorless crystals. Used as an herbicide.
Reactivity ProfileChlorimuron-ethyl is a sulfonyl urea, and pyrimidine derivative.
Agricultural UsesHerbicide: Used to control broadleaf weeds and annual morning glory in soybeans and peanuts. Not listed as registered for use in EU countries. Registered for use in the U.S., except California. There are more than 25 global suppliers.
Trade nameAUTHORITY®; CANOPY® (chlorimuron-ethyl + Metribuzin); CLASSIC®; CONCERT® cancelled; DPX-F6025®; GEMINI®[C]; LOROX®[C]; PREVIEW®[C]; RELIANCE®; SKERMISH®, cancelled; SYNCHRONCY®; SYNCHRONY®[C]
Potential ExposureA sulfonylurea/pyrimidine derivative herbicide used to control broadleaf weeds and annual morning glory in soybeans and peanuts. Not listed as registered for use in EU countries. Registered for use in the United States and available from more than 25 global suppliers.
Metabolic pathwayExcised soybean seedlings rapidly metabolize 14C- chlorimuron ethyl, but common cocklebur and redroot pigweed, which are sensitive to chlorimuron ethyl, metabolize much more slowly. Two metabolites are primarily identified. By intact corn seedlings, chlorimuron ethyl undergoes biotransformation to give more metabolites and under UV light is photodegraded into smaller fragments.
ShippingUN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, nitrates.
Waste DisposalDo not discharge into drains or sewers. Dispose of waste material as hazardous waste using a licensed disposal contractor to an approved landfill. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Incineration with effluent gas scrubbing is recommended. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

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