Description

3-Bromo-4-Ethylbenzoic Acid is a high-purity organic building block characterized by its bromine and ethyl substituents on the benzoic acid core. This compound is valued for its role as a versatile intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, where the bromine atom offers a handle for further functionalization.
• Liquid Crystal & OLED Material Precursor: Serves as a starting material for synthesizing organic semiconductors and liquid crystal compounds used in display technologies.
• Polymer Modification: Employed to introduce functional benzoic acid groups into polymer chains, altering physical properties for specialty coatings and engineering plastics.
• Organic Ligand Synthesis: Utilized in the preparation of ligands for catalysis and metal-organic frameworks (MOFs).
• Academic & Industrial R&D: A fundamental reagent in chemical research for studying structure-activity relationships and developing new synthetic methodologies.

Basic Information

Item	Details
Product Name	3-Bromo-4-Ethylbenzoic Acid
CAS No.	99548-53-5
Molecular Formula	C9H9BrO2
Molecular Weight	229.07 g/mol
Synonyms	3-Bromo-4-ethylbenzoic acid; 4-Ethyl-3-bromobenzoic acid; Benzoic acid, 3-bromo-4-ethyl-; 2-Bromo-4-carboxyethylbenzene; 3-Bromo-4-ethyl-benzoic acid; 99548-53-5; 3-Br-4-Et-Ph-COOH
EINECS	Contact for details

Quality Control

Our 3-Bromo-4-Ethylbenzoic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates under GMP or ISO-guided environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	Contact for details
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm

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