Description

4-Bromo-3-Ethylbenzaldehyde is a versatile aromatic aldehyde building block, distinguished by its bromo and ethyl substituents which enable selective chemical transformations. This compound is essential for advanced organic synthesis, offering a critical handle for cross-coupling reactions and the construction of complex molecular architectures. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a functionalized benzaldehyde core.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, where the bromine atom facilitates further derivatization.
• Ligand and Catalyst Development: Serves as a starting material for synthesizing specialized ligands used in transition metal catalysis and organocatalysis.
• Material Science Research: Employed in the creation of organic electronic materials, liquid crystals, and advanced polymers.
• Chemical Research & Development: A valuable building block for medicinal chemistry programs and exploratory synthesis in academic and industrial R&D laboratories.
• Fine Chemical Production: Integral to the multi-step synthesis of dyes, flavors, and fragrances requiring specific substitution patterns.

Basic Information

Product Name	4-Bromo-3-Ethylbenzaldehyde
CAS No.	1253787-58-4
Molecular Formula	C9H9BrO
Molecular Weight	213.07 g/mol
Synonyms	3-Ethyl-4-bromobenzaldehyde; 4-Bromo-3-ethyl-benzaldehyde; Benzaldehyde, 4-bromo-3-ethyl-; 1-Bromo-2-ethyl-4-formylbenzene; 2-Ethyl-4-formylphenyl bromide
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Ethylbenzaldehyde is manufactured under strict quality management systems. Each 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 every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen or argon. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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