Description

Pyriminobac-Methyl (E) is a selective, post-emergence herbicide belonging to the pyrimidinyloxybenzoic acid chemical class. Its primary value lies in its high efficacy and selectivity for controlling problematic grass and broadleaf weeds in paddy rice fields, offering a critical tool for integrated weed management. This product is essential for agricultural chemical formulators, agrochemical manufacturers, and research institutions focused on developing advanced crop protection solutions. The compound is supplied under stringent quality control to ensure batch-to-batch consistency for formulation and field performance.

Application

• Primary Use in Rice Cultivation: Selective post-emergence control of barnyardgrass (*Echinochloa crus-galli*), sedges, and certain broadleaf weeds in transplanted and direct-seeded paddy rice.
• Agrochemical Formulation: A key active ingredient for manufacturing emulsifiable concentrates (EC), suspension concentrates (SC), and water-dispersible granules (WG) for the crop protection industry.
• Resistance Management: Used in herbicide rotation programs to manage and delay the development of herbicide-resistant weed biotypes.
• Research & Development: Serves as a reference standard and intermediate in agricultural research for developing new herbicidal compounds and studying mode of action.

Basic Information

Product Name	Pyriminobac-Methyl (E)
CAS No.	136191-64-5
Molecular Formula	C17H19N3O6
Molecular Weight	361.35 g/mol
Synonyms	Pyriminobac-methyl; (E)-Methyl 2-[(4,6-dimethoxypyrimidin-2-yl)oxy]-6-[1-(methoxyimino)ethyl]benzoate; KIH-6127; KIH 6127; KIH6127; 2-[(4,6-Dimethoxy-2-pyrimidinyl)oxy]-6-[(1E)-1-(methoxyimino)ethyl]benzoic acid methyl ester; (E)-Methyl 2-(4,6-dimethoxypyrimidin-2-yloxy)-6-(1-methoxyiminoethyl)benzoate
EINECS	Contact for details

Quality Control

Our Pyriminobac-Methyl (E) is manufactured under a strict quality management system to ensure it meets the high standards required for agrochemical active ingredients. Every batch is analyzed using advanced techniques like HPLC to confirm identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specification results 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 area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0% (E-isomer)
Related Substances (HPLC)	Total impurities ≤ 3.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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