Description

3-Chloro-4-Methoxyphenylacetic Acid is a versatile aromatic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both chloro and methoxy substituents, makes it a valuable intermediate for creating complex molecules with specific electronic and steric properties. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries seeking to develop new active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the development of herbicides, fungicides, and plant growth regulators, leveraging its halogenated phenylacetic acid backbone.
• Liquid Crystal & OLED Material Research: Serves as a starting material for synthesizing advanced organic electronic materials and liquid crystal compounds.
• Fine Chemical & Dye Intermediate: Employed in the production of specialized dyes, pigments, and performance chemicals.
• Biochemical Research: Used as a standard or reagent in metabolic pathway studies and enzyme inhibition research.
• Polymer Modification: Acts as a functional monomer or additive to impart specific properties to polymer chains.

Basic Information

Product Name	3-Chloro-4-Methoxyphenylacetic Acid
CAS No.	13721-20-5
Molecular Formula	C9H9ClO3
Molecular Weight	200.62 g/mol
Synonyms	(3-Chloro-4-methoxyphenyl)acetic Acid; 2-(3-Chloro-4-methoxyphenyl)acetic Acid; 3-Chloro-4-methoxybenzeneacetic Acid; 3-Chloro-4-methoxy-α-toluic Acid; 3-Chloro-4-methoxyphenylacetic Acid; 3-Chloro-4-methoxybenzylcarboxylic Acid; 3-Chloro-4-methoxyphenylacetate; 3-Chloro-4-methoxyphenylacetic acid (CAS 13721-20-5)
EINECS	237-312-3

Quality Control

Our 3-Chloro-4-Methoxyphenylacetic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment supports compliance with cGMP and ISO 9001 standards for reliable supply to regulated industries.

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). Keep away from strong oxidizing agents, strong bases, and sources of ignition. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	105°C - 110°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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