Description

4-Bromobenzoyl Chloride is a versatile and reactive aromatic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to efficiently introduce the 4-bromobenzoyl moiety, a key structural unit for modifying molecular properties and enabling further functionalization. This high-purity intermediate is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to create active ingredients, liquid crystal materials, and complex organic compounds.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring brominated aromatic structures.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and other crop protection agents.
• Liquid Crystal & OLED Materials: Serves as a building block for brominated aromatic cores in electronic display and lighting materials.
• Polymer Modification: Employed to functionalize polymers and resins, imparting specific chemical or physical properties.
• Organic Synthesis Reagent: A fundamental reagent for Friedel-Crafts acylation and nucleophilic acyl substitution reactions in research and development.
• Dye & Pigment Manufacturing: Intermediate in the production of complex organic dyes and colorants.

Basic Information

Product Name	4-Bromobenzoyl Chloride
CAS No.	586-75-4
Molecular Formula	C7H4BrClO
Molecular Weight	219.46 g/mol
Synonyms	p-Bromobenzoyl chloride; 4-Bromobenzoic acid chloride; Benzoic acid, 4-bromo-, chloride; (4-Bromophenyl)carbonyl chloride; p-Bromobenzoic acid chloride; 4-Bromobenzene-1-carbonyl chloride; 586-75-4; NSC 406853
EINECS	209-578-5

Quality Control

Our 4-Bromobenzoyl Chloride is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to ensure high chemical purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with every shipment. Our quality system is designed to meet the stringent requirements of GMP and ISO standards for advanced intermediates.

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 must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from heat, open flames, and incompatible materials such as strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	38 - 42 °C
Water Content (KF)	≤ 0.5%

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