126801-58-9

Basic information

• Product Name: Ethoxysulfuron
• Synonyms: ETHOXYSULFURON;1-(4,6-dimethoxypyrimidin-2-yl)-3-(2-ethoxyphenoxysulfonyl)urea;1(4,6-dimethoxypyrimidin-2-yl)-3-(2-ethoxyphenoxysulfony)urea;2-ethoxyphenyl ester (((4,6-dimethoxypyrimidin-2-yl)amino)carbonyl)sulfamic acid;Sunrice;ETHOXYSULFURON PESTANAL, 100 MG;hoe095404;3-(4,6-Dimethoxypyrimidin-2-yl)-1-(2-ethoxy-phenoxysulfonyl)urea
• CAS NO: 126801-58-9
• Molecular Formula: C₁₅H₁₈N₄O₇S
• Molecular Weight: 398.39
• Product Categories: EQ - EZPesticides&Metabolites;Alpha sort;E;E-GAlphabetic;Herbicides;Pesticides&Metabolites;Urea structure
• Mol File: 126801-58-9.mol
• Article Data: 5

Chemical Properties

• Melting Point: 145-147°
• Appearance: /
• Density: 1.426 g/cm³
• Refractive Index: 1.583
• Storage Temp.: 0-6°C
• Solubility: Solubility in organic solvents (g/l at 20 °C) Acetone 36.0 Ethyl acetate 14.1 Dichloromethane 107.0 n‐Hexane 0.006 Methanol 7.7 Polyethylene glycol 22.5 Toluene 2.5
• PKA: Dissociation constant (pKa at 20 °C) 5.28
• Water Solubility: Solubility in water (g/l at 20 °C): 0.026 (pH 5) ? 1.353 (pH 7)?? 9.628 (pH 9)
• CAS DataBase Reference: Ethoxysulfuron(CAS DataBase Reference)
• NIST Chemistry Reference: Ethoxysulfuron(126801-58-9)
• EPA Substance Registry System: Ethoxysulfuron(126801-58-9)

Safety Data

• Hazard Codes: N
• Statements: 50/53
• Safety Statements: 60-61
• RIDADR: UN 3077
• Hazardous Substances Data: 126801-58-9(Hazardous Substances Data)

Usage

Description

Ethoxysulfuron, also known as HOE 095404, is a versatile herbicide specifically designed for the control of broadleaf and sedge weed species in various agricultural settings. It operates through a differential metabolism mechanism, allowing it to selectively target weeds while sparing the main crops. This selective action makes it a valuable tool in modern agriculture for effective weed management without causing significant harm to the desired crop.

Uses

Used in Agricultural Industry:
Ethoxysulfuron is used as a herbicide for the control of broadleaf and sedge weed species in crops such as rice, cereals, and sugarcane. Its selective nature ensures that it effectively targets and controls a wide range of important annual and perennial rice weeds, including Cyperus spp., Aeschynomene spp., Eleocharis spp., Sagittaria spp., Scirpus spp., Amannia spp., Lindernia spp., Ludwigia spp., and Monochoria vaginalis, without negatively impacting the growth and development of the main crops.
Ethoxysulfuron's selectivity is maintained across all types of seeded rice (dry drilled, pregerminated wet seeded, pregerminated water seeded) and all types of transplanted rice. The effectiveness of the herbicide is not influenced by the growth stage of the rice at the time of application, nor by water management or other environmental factors.
In the market, Ethoxysulfuron has been introduced under various trade names and formulations, such as "Sunrice? WG" by Bayer CropScience, and in combination with other compounds like anilofos as "Riceguard?," "Benefiter?," "Sunrice Super," and "Sunrice Plus." In Australia, it is used under the trade name "Hero?" for post-emergent control of Cyperus rotundus in sugarcane at a rate of 250 g a.i. ha?1.

InChI:InChI=1/C15H18N4O7S/c1-4-25-10-7-5-6-8-11(10)26-27(21,22)19-15(20)18-14-16-12(23-2)9-13(17-14)24-3/h5-9H,4H2,1-3H3,(H2,16,17,18,19,20)

Upstream product

• 36315-01-2 4,6-dimethoxy-2-aminopyrimidine 
• 126802-26-4 (2-ethoxy-phenoxy)-sulphonyl isocyanate 
• 128276-53-9 2-ethoxyphenoxysulfonamide 
• 111284-03-8 2-isocyanato-4,6-dimethoxypyrimidine 

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.

Process for the preparation of 4,6-disubstituted 2-isocyanatopyrimidines and their use as intermediates for active compound syntheses

Isocyanates of the formula (I) in which X and Y are defined as in formula (I) of claim 1 can be prepared by reacting a compound of the formula (II) or its salts in which X and Y are defined as in formula (I), with 1 to 6 mol of phosgene per mole of compound of the formula (II), in the presence of 2 to 3.5 molar equivalents of a base per mole of compound of the formula (II) and in the presence of an aprotic organic solvent at a reaction temperature in the range from ?30 to +60° C. to give the compound of the formula (I). The compounds (I) can be converted by reaction with nucleophiles to give addition products, such as carbamates, ureas and sulfonylureas and corresponding products, e.g. herbicidal sulfonylureas.

Heterocyclic 2-alkoxyphenoxysulfonylureas and the use thereof as herbicides or plant growth regulators

Compounds of the formula I or salts thereof STR1 where R1 is ethyl, propyl or isopropyl, R2 is halogen, NO2, CF3, CN, alkyl, alkoxy, alkylthio or alkoxycarbonyl, n is 0, 1, 2 or 3, Y is O or S, R3 is