Description

4-Chloro-3-Methoxybenzoic Acid is a versatile aromatic carboxylic acid derivative that serves as a key synthetic intermediate in advanced organic chemistry. Its value lies in the strategic positioning of the chloro and methoxy substituents, which enable selective functionalization for building complex molecular architectures. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of novel drug candidates.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its halogenated benzoic acid core.
• Liquid Crystal & OLED Material Precursor: Serves as a starting material for synthesizing advanced organic electronic materials and liquid crystal compounds.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of complex dyes, pigments, and colorants.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing material properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D labs for coupling reactions, esterifications, and amide formations.

Basic Information

Product Name	4-Chloro-3-Methoxybenzoic Acid
CAS No.	85740-98-3
Molecular Formula	C8H7ClO3
Molecular Weight	186.59 g/mol
Synonyms	3-Methoxy-4-chlorobenzoic Acid; 4-Chloro-3-methoxybenzoic acid; 4-Chloro-m-anisic Acid; Benzoic acid, 4-chloro-3-methoxy-; 4-Chloro-3-methoxy-benzoic acid; 4-Chloro-3-methoxybenzoic acid (contains up to 5% of 6-Chloro-3-methoxybenzoic acid)
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-3-Methoxybenzoic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment.

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 strong bases, strong oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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