99283-00-8

Basic information

• Product Name: Chlorimuron
• Synonyms: CHLORIMURON;2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic acid;2-(4-chloro-6-methoxypyrimidin-2-ylcarbamoylsulfamoyl)benzoic acid;2-[[(4-Chloro-6-methoxy-2-pyrimidinyl)carbamoyl]sulfamoyl]benzoic acid;2-(N-((4-Chloro-6-methoxypyrimidin-2-yl)carbamoyl)sulfamoyl)benzoic acid
• CAS NO: 99283-00-8
• Molecular Formula: C13H11ClN4O6S
• Molecular Weight: 386.77
• Mol File: 99283-00-8.mol
• Article Data: 3

Chemical Properties

• Melting Point: 185-187°C
• Appearance: /
• Density: 1.639 g/cm³
• Refractive Index: 1.643
• Storage Temp.: 2-8°C
• PKA: 2.74±0.36(Predicted)
• CAS DataBase Reference: Chlorimuron(CAS DataBase Reference)
• NIST Chemistry Reference: Chlorimuron(99283-00-8)
• EPA Substance Registry System: Chlorimuron(99283-00-8)

Safety Data

• Hazardous Substances Data: 99283-00-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C13H11ClN4O6S/c1-24-10-6-9(14)15-12(16-10)17-13(21)18-25(22,23)8-5-3-2-4-7(8)11(19)20/h2-6H,1H3,(H,19,20)(H2,15,16,17,18,21)

Upstream product

• 90982-32-4 chlorimuron ethyl 

Relevant articles and documents

HERBICIDAL COMPOSITIONS

The present invention provides compositions comprising herbicidally active compounds (A) and (B), where (A) represents one or more compounds of the general formula (I) or agrochemically compatible salts thereof [component (A)], and (B) represents one or more herbicides [component (B)]. The application further relates to a method and to the use of the herbicidal composition according to the invention for controlling harmful plants or for regulating growth.

Phototransformation of Chlorimuron-ethyl in Aqueous Solution

Chlorimuron-ethyl is relatively stable in water buffered to pH 7.0 and 9.0, but hydrolyzes readily (half-life, 14 d) in water buffered to pH 4.0. In addition, chlorimuron-ethyl photodegrades rapidly and extensively in aqueous solution. The predominant photoproducts are 4-methoxy-6-chloro-2-aminopyrimidine, ethyl 2-aminosulfonylbenzoate, N-(4-methoxy-6-chloropyrimidin-2-yl)methyl urea, and o-benzoic sulfimide (saccharin). A minor deesterified product (chlorimuron) was evident. The decrease in chlorimuron-ethyl concentration in aqueous solutions followed first-order kinetics. The rate of degradation in different types of water followed the order irrigation water > tap water > distilled water. Chlorimuron-ethyl photodegraded in pH 4, 7, and 9 buffer solutions under both UV and sunlight. A faster degradation rate in pH 4.0 buffer solution was observed.