Description

(S)-Metolachlor is a high-purity, single-isomer chiral herbicide, representing the biologically active enantiomer of the racemic metolachlor. This compound matters for its superior herbicidal efficacy and environmental profile, allowing for lower application rates and reduced ecological impact compared to the racemic mixture. It is critically needed by agrochemical formulators and producers of selective pre-emergence herbicides targeting annual grasses and broadleaf weeds in major crops such as corn, soybeans, and peanuts.

Application

• Selective Herbicide Formulation: Primary active ingredient in premium, enantiomerically pure pre-emergence herbicide products.
• Row Crop Protection: Control of annual grasses (e.g., foxtails, barnyardgrass) and small-seeded broadleaf weeds in maize (corn), soybean, and peanut fields.
• Agrochemical Intermediate: Used in the synthesis and manufacturing of advanced, isomer-specific pesticide formulations.
• Research & Development: Serves as a chiral reference standard and active material in agricultural R&D for developing new weed control solutions.
• Sustainable Agriculture Programs: Enables integrated pest management (IPM) strategies by providing effective control with a potentially lower environmental burden.

Basic Information

Product Name	(S)-Metolachlor
CAS No.	87392-12-9
Molecular Formula	C15H22ClNO2
Molecular Weight	283.80 g/mol
Synonyms	(S)-2-Chloro-N-(2-ethyl-6-methylphenyl)-N-[(1S)-2-methoxy-1-methylethyl]acetamide; S-Metolachlor; (S)-α-Chloro-2'-ethyl-6'-methyl-N-(1-methyl-2-methoxyethyl)acetanilide; Dual Magnum® (S-isomer); Dual II Magnum®; Metolachlor-S; (S)-Metochlor; (S)-2-Ethyl-6-methyl-1-N-(2-methoxy-1-methylethyl)chloroacetanilide
EINECS	Contact for details

Quality Control

Our (S)-Metolachlor is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure high enantiomeric purity and chemical identity, meeting the specifications required for agrochemical active ingredient registration and formulation. A Certificate of Analysis (COA) detailing purity, isomer content, and impurity profiles is provided with each shipment.

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. This material is moisture-sensitive; ensure the container is kept tightly sealed to prevent absorption of water vapor.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Enantiomeric Purity (S-Isomer)	≥ 90.0%
Water Content (Karl Fischer)	≤ 0.5%

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