Description

Chlorsulfuron CAS NO 64902-72-3 is a highly selective, systemic sulfonylurea herbicide known for its potent pre- and post-emergence weed control at very low application rates. Its core value lies in providing effective, long-lasting management of broadleaf weeds and some annual grasses in key cereal and non-cereal crops. This product is essential for agricultural professionals, formulators, and distributors serving the global crop protection industry who require a reliable, high-quality active ingredient for manufacturing advanced herbicide formulations.

Application

Chlorsulfuron is a cornerstone active ingredient in modern selective herbicide programs. Its primary and related applications include:

• Cereal Crop Protection: Selective control of broadleaf weeds in wheat, barley, oats, and rye.
• Non-Cereal Crop Use: Weed management in designated non-crop areas and certain tolerant crops under specific registered use patterns.
• Industrial Vegetation Management: Control of unwanted vegetation along rights-of-way, railways, and industrial sites.
• Formulation Intermediate: Serves as a key technical material for producing wettable powders (WP), water-dispersible granules (WG), and other commercial herbicide formulations.
• Research & Development: Used in agricultural R&D for studying weed science, mode of action, and developing new crop protection solutions.

Basic Information

Product Name	Chlorsulfuron
CAS No.	64902-72-3
Molecular Formula	C12H12ClN5O4S
Molecular Weight	357.77 g/mol
Synonyms	1-(2-Chlorophenylsulfonyl)-3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea; 2-Chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]benzenesulfonamide; DPX 4189; Glean; Telar; Corsair
EINECS	265-268-5

Quality Control

Our Chlorsulfuron technical is manufactured under strict quality management systems to ensure batch-to-batch consistency and efficacy. Quality is verified through comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing purity, physical properties, and relevant specifications accompanies each shipment. We adhere to industry standards and can provide material tailored to meet specific customer or regional regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container must be kept tightly closed and stored in a dry place to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 1.0%
pH (1% suspension)	4.0 - 7.0
Related Substances (HPLC)	Total impurities ≤ 3.0%

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