Description

3-Chloro-4-Methoxybenzoyl Chloride is a versatile and highly reactive aromatic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functional groups, which enable efficient acylation reactions to construct complex molecular architectures. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a substituted benzoyl moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the chlorinated methoxybenzene structure imparts specific biological activity.
• Liquid Crystal & OLED Material Production: Acts as a building block for creating complex organic molecules used in electronic displays and photonic devices.
• Polymer Chemistry: Employed as a monomer or cross-linking agent in the synthesis of specialty polymers, such as polyamides or polyesters, with tailored properties.
• Dyestuff and Pigment Manufacturing: Intermediate for synthesizing azo dyes and high-performance pigments that require chlorinated anisole derivatives.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Item	Details
Product Name	3-Chloro-4-Methoxybenzoyl Chloride
CAS No.	36590-49-5
Molecular Formula	C8H6Cl2O2
Molecular Weight	205.04 g/mol
Synonyms	3-Chloro-4-methoxybenzoyl chloride; 4-Methoxy-3-chlorobenzoyl chloride; 3-Chloro-p-anisoyl chloride; 3-Chloro-4-methoxybenzoic acid chloride; 36590-49-5; 3-Chloro-4-methoxy-benzoyl chloride; 3-Chloro-4-methoxybenzenecarbonyl chloride
EINECS	Contact for details

Quality Control

Our 3-Chloro-4-Methoxybenzoyl Chloride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by titration, purity determination by HPLC, and identification by FT-IR and NMR spectroscopy, to ensure it meets exacting standards for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts vigorously with water, strong bases, and alcohols. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent hydrolysis and maintain purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Purity (HPLC)	≥ 97.0 %
Water Content (KF)	≤ 0.5 %

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