Description

Benzoyl Chloride,2-(4-Chlorobenzoyl)- CAS NO 42156-76-3 is a specialized chlorinated benzoyl chloride derivative, serving as a critical high-purity building block in advanced organic synthesis. Its value lies in its dual reactive sites, enabling the precise construction of complex molecular architectures. This intermediate is essential for manufacturers in the pharmaceutical and agrochemical sectors, where it is used to develop active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a chlorobenzoyl moiety.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and insecticides, where it acts as a core building block.
• Dye and Pigment Production: Serves as an intermediate for creating specialized colorants and photographic chemicals.
• Polymer Chemistry: Employed as a monomer or cross-linking agent in the production of high-performance polymers and resins.
• Liquid Crystal & OLED Materials: A valuable intermediate in the synthesis of advanced electronic and display materials.
• Organic Synthesis & Research: A versatile reagent in academic and industrial R&D labs for constructing complex organic molecules.

Basic Information

Product Name	Benzoyl Chloride,2-(4-Chlorobenzoyl)-
CAS No.	42156-76-3
Molecular Formula	C14H8Cl2O2
Molecular Weight	279.12 g/mol
Synonyms	2-(4-Chlorobenzoyl)benzoyl chloride; 4'-Chloro-2-benzoylbenzoyl chloride; 2-Benzoyl-4'-chlorobenzoyl chloride; (4-Chlorophenyl)(2-chlorocarbonylphenyl)methanone; α-Chloro-4'-chlorobenzil; 2-(4-Chlorobenzoyl)benzoic acid chloride
EINECS	Contact for details

Quality Control

Our Benzoyl Chloride,2-(4-Chlorobenzoyl)- is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; keep the container tightly sealed and handle under dry conditions to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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