Description

4-Chloro-2-Methyl-Benzenepropanoic Acid is a versatile aromatic carboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its value lies in providing a functionalized phenylpropanoic acid scaffold that can be readily modified to create more complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used in the development of active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the preparation of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & Dye Manufacturing: Acts as a precursor for mesogenic units in liquid crystal displays and specialized organic dyes.
• Polymer Chemistry: Employed as a monomer or modifier to introduce specific aromatic and carboxylic acid functionalities into polymer chains.
• Organic Synthesis & Research: A valuable reagent for constructing complex organic compounds in academic and industrial R&D laboratories.
• Flavor & Fragrance Industry: Can be used in the synthesis of certain aromatic compounds for specialty applications.

Basic Information

Product Name	4-Chloro-2-Methyl-Benzenepropanoic Acid
CAS No.	879-75-4
Molecular Formula	C10H11ClO2
Molecular Weight	198.65 g/mol
Synonyms	2-Methyl-4-chlorohydrocinnamic Acid; (4-Chloro-2-methylphenyl)propanoic Acid; 3-(4-Chloro-2-methylphenyl)propanoic Acid; Benzenepropanoic acid, 4-chloro-2-methyl-; γ-(4-Chloro-o-tolyl)butyric Acid; 4-Chloro-2-methylhydrocinnamic Acid
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-Methyl-Benzenepropanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates, including cGMP pharmaceutical development.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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