General Description
Colorless crystals. Used as an herbicide.
Reactivity Profile
CHLORIMURON ETHYL is a sulfonyl urea, and pyrimidine derivative.
Potential Exposure
A 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.
First aid
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at
least 15 minutes, occasionally lifting upper and lower
lids. Seek medical attention immediately. If this chemical
contacts the skin, remove contaminated clothing and
wash immediately with soap and water. Seek medical
attention immediately. If this chemical has been inhaled,
remove from exposure, begin rescue breathing (using universal precautions) if breathing has stopped, and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get
medical attention. Give large quantities of water and
induce vomiting. Do not make an unconscious person
vomit.
Shipping
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Incompatibilities
Incompatible 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.
Chemical Properties
Colorless to off white or pale yellow crystals
or powder. Some formulations are listed as “flammable”
in the literature. Odorless.
Waste Disposal
Do 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.
Definition
ChEBI: Chlorimuron-ethyl is an ethyl ester resulting from the formal condensation of the carboxy group of chlorimuron with ethanol. A proherbicide for chloimuron, it is used as herbicide for the control of broad-leaved weeds in peanuts, soya beans, and other crops. It has a role as a proherbicide, an EC 2.2.1.6 (acetolactate synthase) inhibitor and an agrochemical. It is a sulfamoylbenzoate, a N-sulfonylurea, an aromatic ether, an ethyl ester, an organochlorine pesticide and a member of pyrimidines. It is functionally related to a chlorimuron. It is a conjugate acid of a chlorimuron-ethyl(1-).
Agricultural Uses
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 U.S., except California. There are more than 25 global suppliers.
Trade name
AUTHORITY®; CANOPY® (chlorimuron-ethyl + Metribuzin); CLASSIC®; CONCERT® cancelled; DPX-F6025®; GEMINI®[C]; LOROX®[C]; PREVIEW®[C]; RELIANCE®; SKERMISH®, cancelled; SYNCHRONCY®; SYNCHRONY®[C]
Metabolic pathway
Excised 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.
