90982-32-4 Usage
Description
Chlorimuron-ethyl is a post-emergence, foliar applied herbicide belonging to the sulfonylurea family. It is characterized by its colorless to off white or pale yellow crystalline or powder form and is odorless, with some formulations listed as "flammable". This herbicide is not approved for use within the EU regulatory framework.
Uses
Used in Agriculture:
Chlorimuron-ethyl is used as a herbicide for weed control in various crops such as wheat, rice, soybean, barley, potato, and corn. It is favored for its broad-spectrum activity, low use rate, good crop selectivity, and low toxicity to animals.
The application reason for Chlorimuron-ethyl in agriculture is its effectiveness in controlling broadleaf weeds and annual morning glory in soybeans and peanuts. It is registered for use in the U.S., except for California, and there are more than 25 global suppliers. However, it is not listed as registered for use in EU countries.
Its mechanism of action involves suppressing the plantand microbial-specific enzyme acetolactate synthase (ALS), which in turn blocks the biosynthesis of branched-chain amino acids like valine, leucine, and isoleucine. This leads to a rapid cessation of plant cell division and growth, effectively controlling weed populations in agricultural settings.
References
http://sitem.herts.ac.uk/aeru/ppdb/en/Reports/1145.htm
http://lfse.iae.ac.cn/Article/UploadFiles/201310/2013102910313432.pdf
Reactivity Profile
Chlorimuron-ethyl is a sulfonyl urea, and pyrimidine derivative.
Trade name
AUTHORITY?; CANOPY? (chlorimuron-ethyl + Metribuzin); CLASSIC?; CONCERT? cancelled; DPX-F6025?; GEMINI?[C]; LOROX?[C]; PREVIEW?[C]; RELIANCE?; SKERMISH?, cancelled; SYNCHRONCY?; SYNCHRONY?[C]
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.
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.
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.
Check Digit Verification of cas no
The CAS Registry Mumber 90982-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,8 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90982-32:
(7*9)+(6*0)+(5*9)+(4*8)+(3*2)+(2*3)+(1*2)=154
154 % 10 = 4
So 90982-32-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H15ClN4O6S/c1-3-26-13(21)9-6-4-5-7-10(9)27(23,24)20-15(22)19-14-17-11(16)8-12(18-14)25-2/h4-8H,3H2,1-2H3,(H2,17,18,19,20,22)
90982-32-4Relevant articles and documents
Substituted pyridinesulfonamide compounds or their salts, process for preparing the same, and herbicides containing the same
-
, (2008/06/13)
A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): wherein R1 is an unsubstituted or substituted alkyl group; R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.
N-phenylpyrrolidines
-
, (2008/06/13)
The 1-(3,5-bis-trifluoromethylphenyl)-2-thioxopyrrolidine-4-carboxylic acid derivatives of the formula I below are suitable for protecting crop plants against the phytotoxic action of herbicides and for regulating the plant growth. The 1-(3,5-bis-trifluoromethylphenyl)-2-thioxopyrrolidine-4-carboxylic acid derivatives are those of the formula I STR1 wherein A is --COOR1, --COSR1, --COO? M≈, --CONR2 R3 or --COCl; R1 is hydrogen, C1 -C4 alkyl, C2 -C6 alkenyl or C2 -C6 alkynyl; R2 and R3 independently of one another are hydrogen, C1 -C4 alkyl or C3 -C7 cycloalkyl; or R2 and R3 together with the nitrogen atom to which they are bonded are a saturated 3- to 7-membered heterocycle which can contain an additional hetero atom selected from the group comprising O, N and S and which is unsubstituted or up to trisubstituted by C1 14 C4 alkyl; and M≈ is the equivalent of an alkali metal cation or an alkaline earth metal cation or HN≈ (R2)3, and their isomers in optically pure or enriched form.
Herbicidal compound concentrate
-
, (2008/06/13)
There is provided a novel herbicidal compound concentrate in the form of compressed solid formulations that disintegrate in water to form a sprayable dispersion.
