Description

3,4-Dibromobenzoyl Chloride is a versatile and highly 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 3,4-dibromobenzoyl moiety, a key structural motif for modifying molecular properties. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries, where it is used to create novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring halogenated aromatic systems for bioactivity or metabolic stability.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the dibromo-substituted benzoyl group can enhance product efficacy and environmental persistence.
• Liquid Crystal & OLED Material Production: Acts as a building block for creating halogenated aromatic cores in advanced electronic and display materials, influencing their electro-optical properties.
• Polymer Modification: Employed as a monomer or grafting agent to incorporate bromine atoms into polymer backbones, improving flame retardancy and other material characteristics.
• Organic Synthesis Reagent: A valuable reagent for peptide coupling (as an activated acid) and for synthesizing amides, esters, and ketones under mild conditions in research laboratories.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of complex, high-performance colorants and photographic chemicals.

Basic Information

Product Name	3,4-Dibromobenzoyl Chloride
CAS No.	21900-35-6
Molecular Formula	C7H3Br2ClO
Molecular Weight	298.36 g/mol
Synonyms	3,4-Dibromobenzoyl chloride; 3,4-Dibromobenzoic acid chloride; Benzoic acid, 3,4-dibromo-, chloride; 3,4-Dibromobenzoylchlorid; NSC 404087; 3,4-Dibromo-benzoyl chloride; 3,4-Dibromobenzoyl Chloride (3,4-DBBC)
EINECS	Contact for details

Quality Control

Our 3,4-Dibromobenzoyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee it meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from moisture, bases, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	68°C - 72°C
Water Content (KF)	≤ 0.5%

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