Description

Fenoxasulfone is a selective herbicide belonging to the sulfonylurea chemical class, designed for effective weed control in rice paddies. Its primary value lies in its post-emergence activity against a broad spectrum of grassy and sedge weeds, offering crop safety and flexible application timing. This product is essential for agricultural professionals and formulators in the agrochemical industry seeking reliable, high-purity active ingredients for advanced crop protection solutions.

Application

• Primary Use in Rice Cultivation: Post-emergence control of annual and perennial weeds, including barnyardgrass, sedges, and broadleaf weeds, in transplanted and direct-seeded rice.
• Agrochemical Formulation: Serves as a key active ingredient in the manufacturing of suspension concentrates (SC), wettable powders (WP), and other commercial herbicide formulations.
• Integrated Weed Management (IWM) Programs: Used in rotation or tank mixtures with other herbicides to manage weed resistance and ensure long-term field efficacy.
• Research & Development: Utilized as a high-purity reference standard in analytical laboratories for method development, residue analysis, and environmental fate studies.

Basic Information

Product Name	Fenoxasulfone
CAS No.	639826-16-7
Molecular Formula	C₁₆H₁₄F₃N₃O₅S
Molecular Weight	417.36 g/mol
Synonyms	Fenoxasulfone; 1,3-Dioxolane, 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-4,5-dihydro-4-methyl-5-oxo-3-(trifluoromethyl)-; CAS 639826-16-7; 2-((((4,6-Dimethoxypyrimidin-2-yl)carbamoyl)amino)sulfonyl)-4,5-dihydro-4-methyl-5-oxo-3-(trifluoromethyl)-1,3-dioxolane; Trade names may include proprietary formulations.
EINECS	Contact for details

Quality Control

Our Fenoxasulfone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for agrochemical formulation. We provide full traceability and Certificates of Analysis (COA) are available upon request, detailing purity, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.