Description

3-Chloro-4-Methylbenzoyl 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 ability to efficiently introduce the 3-chloro-4-methylbenzoyl moiety, enabling the production of high-performance compounds with tailored properties. This intermediate is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a halogenated benzoyl group.
• Agrochemical Synthesis: Used in manufacturing herbicides, fungicides, and insecticides where the chloromethylbenzoyl structure imparts specific biological activity.
• Dye and Pigment Production: Serves as a building block for creating complex organic dyes and pigments with enhanced color fastness and stability.
• Polymer Chemistry: Employed as a monomer or modifying agent in the production of specialty polymers, including polyamides and polyesters.
• Liquid Crystal & OLED Materials: A valuable intermediate for synthesizing advanced organic electronic materials used in displays.
• Chemical Research & Development: Utilized in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	3-Chloro-4-Methylbenzoyl Chloride
CAS No.	21900-30-1
Molecular Formula	C8H6Cl2O
Molecular Weight	189.04 g/mol
Synonyms	4-Methyl-3-chlorobenzoyl chloride; 3-Chloro-p-toluoyl chloride; 3-Chloro-4-methylbenzoic acid chloride; 2-Chloro-4-(chlorocarbonyl)toluene; 3-Chloro-4-methyl-benzoyl chloride; m-Chloro-p-methylbenzoyl chloride; Benzoic acid, 3-chloro-4-methyl-, chloride
EINECS	244-645-1

Quality Control

Our 3-Chloro-4-Methylbenzoyl Chloride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Production adheres to cGMP guidelines where applicable, and every lot is supported by a comprehensive Certificate of Analysis (COA). Our rigorous testing protocol includes identity confirmation, purity assay, and control of key impurities to meet the exacting standards of our global B2B clientele.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This product is hygroscopic (moisture-sensitive) and reacts vigorously with water, alcohols, and strong bases. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to minimize degradation. Isolate from incompatible materials such as amines, oxidizers, and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	≤ 2.0% total

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