Description

Mcpb CAS NO 94-81-5 is a chlorinated phenoxy herbicide known chemically as 4-chloro-2-methylphenoxybutyric acid. This compound is valued for its selective herbicidal action, effectively controlling broadleaf weeds in cereal crops and turfgrass. It is a critical active ingredient for agricultural formulators and manufacturers of professional-grade weed control products.

Application

• Selective Herbicide Formulation: Primary use as an active ingredient in post-emergence herbicides for crops like wheat, barley, and oats.
• Turf and Lawn Management: Used in commercial and residential lawn care products for controlling dandelions, clover, and other broadleaf weeds.
• Industrial Vegetation Control: Applied in non-crop areas such as railways, roadsides, and industrial sites for vegetation management.
• Agricultural Research & Development: Serves as a reference standard and key intermediate in the synthesis and development of new agrochemicals.
• Manufacturing of Ester Derivatives: Used as a precursor for producing various ester forms of the herbicide, which can alter volatility and absorption properties.

Basic Information

Product Name	Mcpb
CAS No.	94-81-5
Molecular Formula	C11H13ClO3
Molecular Weight	228.67 g/mol
Synonyms	MCPB; 4-(4-Chloro-2-methylphenoxy)butyric acid; 2-Methyl-4-chlorophenoxybutyric acid; (4-Chloro-o-tolyloxy)butyric acid; Tropotox; Bexone; Butoxone; Legumex; Trinoxol; MCPB acid
EINECS	202-365-8

Quality Control

Our Mcpb is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing assay, related substances, and physical parameters is provided with every shipment to guarantee consistency and compliance for your formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	99°C - 102°C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm

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