Description

Pyrazosulfuron-Ethyl CAS NO 93697-74-6 is a selective, systemic sulfonylurea herbicide used for pre- and post-emergence weed control. It is valued for its high efficacy at low application rates, offering a cost-effective solution for managing a broad spectrum of weeds in key crops. This product is essential for agricultural professionals and formulators seeking reliable, high-purity active ingredients to develop effective crop protection solutions.

Application

• Rice Paddy Herbicide: Primarily used for the selective control of annual and perennial broadleaf weeds, sedges, and some grasses in transplanted and direct-seeded rice.
• Cereal Crop Protection: Applied in wheat and barley for post-emergence weed management, targeting problematic species that compete with the crop.
• Turf and Ornamental Management: Used in professional turf management and ornamental plant production to maintain weed-free zones.
• Industrial Vegetation Control: Employed in non-crop areas such as railways, utilities rights-of-way, and industrial sites for total vegetation management.
• Formulation Ingredient: Serves as a key active ingredient in the manufacturing of wettable powder (WP), water-dispersible granule (WDG), and suspension concentrate (SC) herbicide formulations.
• Integrated Weed Management (IWM) Programs: A critical component in rotation strategies to prevent herbicide resistance and ensure sustainable agricultural practices.

Basic Information

Product Name	Pyrazosulfuron-Ethyl
CAS No.	93697-74-6
Molecular Formula	C14H18N6O7S
Molecular Weight	414.39 g/mol
Synonyms	Pyrazosulfuron-ethyl; Ethyl 5-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-1-methylpyrazole-4-carboxylate; 1-Methyl-4-ethoxycarbonyl-5-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)pyrazole; Sirius; Agreen; Millagro; NC-311; DPE-28
EINECS	Contact for details

Quality Control

Our Pyrazosulfuron-Ethyl is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to ensure it meets high-purity standards suitable for agrochemical formulation. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and related substances is provided with each shipment to guarantee traceability and compliance.

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). This product is hygroscopic (moisture-sensitive); therefore, the original container must be kept tightly sealed to minimize exposure to atmospheric humidity. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
pH (1% suspension)	5.0 - 7.0

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