Description

Mefenacet is a selective systemic herbicide belonging to the oxyacetamide chemical class. It is valued for its effective pre- and early post-emergence control of annual grasses and broadleaf weeds in paddy rice fields. This product is essential for agricultural professionals and formulators seeking reliable, long-lasting weed management solutions to protect crop yield and quality. Mefenacet CAS NO 73250-68-7 offers a trusted mode of action for integrated pest management programs.

Application

• Primary Use in Paddy Rice: Pre-emergence and early post-emergence control of Echinochloa crus-galli (barnyard grass) and other problematic weeds in transplanted and direct-seeded rice.
• Selective Herbicide Formulations: A key active ingredient in wettable powder (WP), granule (GR), and suspension concentrate (SC) formulations for agricultural use.
• Resistance Management: An important tool in herbicide rotation programs to manage and delay the development of weed resistance.
• Broad-Spectrum Weed Control: Effective against a range of annual grasses and certain broadleaf weeds, often used in combination with other herbicides for enhanced spectrum.
• Crop Safety: When used as directed, it provides excellent selectivity for rice crops, minimizing damage to the cultivated plants.

Basic Information

Product Name	Mefenacet
CAS No.	73250-68-7
Molecular Formula	C16H14N2O2S
Molecular Weight	298.36 g/mol
Synonyms	2-(2-Benzothiazolyloxy)-N-methyl-N-phenylacetamide; H-9789; FOE 1976; Mefenacet-d3; Jolt; Rancho; Fentrazamide (related amide herbicide); Benzothiazol-2-yloxy-N-methyl-N-phenylacetamide; 2-[(Benzothiazol-2-yloxy)]-N-methylacetanilide
EINECS	Contact for details

Quality Control

Our Mefenacet is manufactured under strict quality management systems to ensure batch-to-batch consistency and efficacy. The product undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to meet technical-grade agricultural standards. A Certificate of Analysis (COA) detailing purity, moisture content, and relevant physicochemical parameters is provided with each shipment to guarantee specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials. Ensure the original container is kept sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
pH (suspension)	5.0 - 8.0

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