Description

Metamifop is a selective post-emergence aryloxyphenoxypropionate (AOPP) herbicide. It is a critical active ingredient for the effective control of grassy weeds in broadleaf crops, offering high selectivity and crop safety. This compound is essential for agricultural chemical manufacturers and formulators serving the global crop protection industry.

Application

• Primary Use in Agriculture: As a key active ingredient in herbicide formulations for the selective control of annual and perennial grassy weeds.
• Rice Paddy Protection: Widely used for post-emergence weed management in rice fields, targeting weeds like barnyard grass and crabgrass.
• Broadleaf Crop Safety: Applied in crops such as soybeans, cotton, and peanuts where it effectively eliminates competing grasses without harming the main crop.
• Industrial Manufacturing: Served as a technical-grade intermediate for agrochemical companies producing final emulsifiable concentrate (EC) or wettable powder (WP) formulations.
• Research & Development: Used in agricultural research institutions for developing new weed control strategies and studying herbicide resistance.

Basic Information

Product Name	Metamifop
CAS No.	256412-89-2
Molecular Formula	C23H21ClFN2O4
Molecular Weight	443.88 g/mol
Synonyms	Metamifop; (R)-2-[4-(6-Chloro-2-benzoxazolyloxy)phenoxy]propionic acid methyl ester; Methyl (R)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propionate; QJ 11; ZJ 0702; Pyrisoxazole (Note: This is a common error, Pyrisoxazole is a different fungicide); Fentrazamide (Note: This is a different herbicide); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our Metamifop technical material is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to ensure it meets high-purity standards suitable for agrochemical formulation. A Certificate of Analysis (COA) detailing purity, specific impurities, and physical properties is provided with each shipment to guarantee consistency and reliability for your manufacturing 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). Keep away from heat, sparks, and open flame. The container should be kept tightly closed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 2.0%
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.