Description

Mesotrione is a selective, systemic herbicide belonging to the triketone chemical class, valued for its excellent pre- and post-emergence control of broadleaf and some grass weeds. Its primary value lies in providing effective, long-lasting weed management with favorable crop safety, particularly in corn (maize) production. This product is essential for agricultural chemical formulators and producers seeking to develop high-performance herbicide solutions for modern farming.

Application

• Primary Use in Corn Herbicides: The dominant application is as the active ingredient in selective herbicide formulations for field corn and sweet corn.
• Broad-Spectrum Weed Control: Effectively manages key weeds such as velvetleaf, lambsquarters, pigweed, and nightshade.
• Pre-emergence and Early Post-emergence Programs: Used in soil-applied and early foliar spray programs for season-long protection.
• Turf and Ornamental Management: Employed in professional turf management for lawns and ornamental beds to control susceptible weeds.
• Component of Herbicide Mixtures: Often formulated with other herbicides like atrazine or S-metolachlor to broaden the spectrum of control and manage resistance.
• Seed Treatment Development: Used in research and development of advanced seed treatment technologies.

Basic Information

Product Name	Mesotrione
CAS No.	435270-61-4
Molecular Formula	C14H13NO7S
Molecular Weight	339.32 g/mol
Synonyms	2-(4-Mesyl-2-nitrobenzoyl)cyclohexane-1,3-dione; 2-[4-(Methylsulfonyl)-2-nitrobenzoyl]-1,3-cyclohexanedione; Callisto (Syngenta trade name); Mesotrione technical; NSC 113927
EINECS	Contact for details

Quality Control

Our Mesotrione is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets high-purity specifications for technical-grade active ingredients. A Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee consistency and reliability for your formulation processes.

Storage

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

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Moisture (Karl Fischer)	≤ 1.0%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
pH (1% suspension)	4.0 - 7.0

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