Description

Napropamide CAS NO 41643-36-1 is a selective pre-emergence herbicide belonging to the chloroacetamide chemical class. It is valued for its effective control of annual grasses and broadleaf weeds in a variety of high-value crops. This compound is a critical tool for agricultural professionals and formulators seeking reliable, long-lasting residual weed management. Its primary use is in the cultivation of fruits, vegetables, and other specialty crops where clean fields are essential for yield and quality.

Application

• Pre-emergence Herbicide in Agriculture: Primary use for controlling weeds in crops such as tomatoes, peppers, strawberries, and tobacco.
• Orchard and Vineyard Management: Used to maintain weed-free strips under trees and vines, reducing competition for water and nutrients.
• Nursery and Ornamental Production: Applied in container and field-grown ornamentals to suppress weed growth.
• Industrial Vegetation Control: Used in non-crop areas like fence lines and around storage yards for selective vegetation management.
• Formulation Ingredient: Serves as a key active ingredient in the manufacturing of emulsifiable concentrate (EC) and wettable powder (WP) herbicide formulations.
• Soil-Applied Residual Control: Effective against germinating weed seeds, providing season-long protection when incorporated into the soil.

Basic Information

Product Name	Napropamide
CAS No.	41643-36-1
Molecular Formula	C17H21NO2
Molecular Weight	271.35 g/mol
Synonyms	N,N-Diethyl-2-(1-naphthalenyloxy)propionamide; Devrinol; R-7465; Napropamide-M; Way-Up; Napropamide technical; (RS)-N,N-Diethyl-2-(1-naphthyloxy)propionamide
EINECS	255-464-7

Quality Control

Our Napropamide is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing purity, physical properties, and conformance to specification is provided with each shipment. We adhere to relevant ISO and GMP standards for industrial agrochemical active ingredients.

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. Store separately from strong oxidizers and foodstuffs.

Specification

Item	Specification
Appearance	Colorless to light brown crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Melting Point	68 - 72 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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