Description

3-Ethyl-5-Fluorobenzaldehyde is a versatile fluorinated aromatic aldehyde building block of significant importance in advanced organic synthesis. Its molecular structure, featuring both an ethyl and a fluorine substituent, makes it a critical intermediate for creating complex molecules with tailored electronic and steric properties. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, where the fluorine atom enhances biological activity and environmental stability.
• Liquid Crystal & OLED Materials: Serves as a precursor for fluorinated liquid crystal compounds and organic light-emitting diode (OLED) materials, contributing to improved display performance and efficiency.
• Functional Polymer Monomer: Employed in the synthesis of specialty polymers with specific optical, electronic, or surface properties for high-tech applications.
• Organic Synthesis Reagent: Acts as a versatile reagent in various name reactions, including condensations and nucleophilic additions, for constructing complex molecular architectures in R&D laboratories.

Basic Information

Product Name	3-Ethyl-5-Fluorobenzaldehyde
CAS No.	1289123-08-5
Molecular Formula	C9H9FO
Molecular Weight	152.17 g/mol
Synonyms	5-Fluoro-3-ethylbenzaldehyde; 3-Ethyl-5-fluorobenzenecarboxaldehyde; m-Ethyl-m-fluorobenzaldehyde; Benzaldehyde, 3-ethyl-5-fluoro-; 1289123-08-5
EINECS	Contact for details

Quality Control

Our 3-Ethyl-5-Fluorobenzaldehyde is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates under cGMP or ISO 9001 frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive and easily oxidized; for long-term storage, consider an inert atmosphere (e.g., nitrogen or argon) to maintain optimal purity and stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5% Total impurities ≤ 2.0%

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