Description

Metalaxyl-M is the biologically active R-enantiomer of the systemic fungicide metalaxyl, offering superior efficacy against a broad spectrum of oomycete pathogens. Its primary value lies in its targeted action and preventive control, which is critical for protecting high-value crops from devastating soil and foliar diseases. This product is essential for agricultural chemical formulators, seed treatment specialists, and crop protection companies developing solutions for potatoes, vegetables, grapes, and tobacco.

Application

• Seed Treatment: Used as a systemic seed dressing to protect against Pythium and Phytophthora spp. in various crops, ensuring strong seedling establishment.
• Soil Application: Applied via drenching, drip irrigation, or soil incorporation to control soil-borne oomycetes in horticultural and field crops.
• Foliar Spray: Formulated into suspension concentrates (SC) or wettable powders (WP) for the preventive control of late blight in potatoes and tomatoes, and downy mildew in grapes and vegetables.
• Professional Turf & Ornamentals: Protects turfgrass, ornamental plants, and nursery stock from root and crown rot diseases caused by water molds.
• Fungicide Mixtures: A key component in combination products with contact fungicides to manage resistance and broaden the spectrum of activity.

Basic Information

Product Name	Metalaxyl-M
CAS No.	70630-17-0
Molecular Formula	C15H21NO4
Molecular Weight	279.33 g/mol
Synonyms	Mefenoxam; Metalaxyl-M; (R)-Metalaxyl; Apron XL®; R-Metalaxyl; Benalaxyl-M (common confusion); Methyl N-(methoxyacetyl)-N-(2,6-xylyl)-D-alaninate; (R)-2-[(2,6-Dimethylphenyl)methoxyacetylamino]propionic acid methyl ester
EINECS	Contact for details

Quality Control

Our Metalaxyl-M is manufactured under a strict quality management system to ensure batch-to-batch consistency and high chemical purity. Every lot is tested against comprehensive specifications, including chiral purity to confirm the enantiomeric excess of the active R-form. A detailed Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with each shipment to support your formulation and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container must be kept tightly closed and stored in a dry place.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Chiral Purity (Enantiomeric Excess)	≥ 98.0% (R-isomer)
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%
pH (suspension)	5.0 - 7.0

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