Intermediates

4-Fluorobenzoyl Chloride

  • CAS No.403-43-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 4-Fluorobenzoyl Chloride (CAS 403-43-0) designed for efficient pesticide and pharmaceutical intermediate synthesis.

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Product Technical Details

Product Overview

4-Fluorobenzoyl Chloride is a highly reactive organic compound that serves as a critical building block in modern chemical synthesis. As an acyl chloride derivative, it features a fluorine substitution at the para position of the benzene ring, which significantly enhances its stability and reactivity profile compared to non-halogenated analogs. This specific structural configuration makes it an indispensable reagent for introducing the 4-fluorobenzoyl moiety into complex molecular architectures. Our manufacturing process ensures consistent quality, making it a reliable choice for large-scale industrial applications.

The compound is characterized by its colorless transparent liquid appearance and distinct pungent odor typical of acid chlorides. Due to its high reactivity with nucleophiles, it is primarily employed in acylation reactions. The presence of the fluorine atom not only influences the electronic properties of the resulting molecules but also often improves the metabolic stability and bioavailability of downstream pharmaceutical candidates. We maintain strict control over production parameters to guarantee low levels of impurities such as free acid and unreacted benzoyl chloride.

Technical Specifications

ParameterValue
CAS Number403-43-0
Molecular FormulaC7H4ClFO
Molecular Weight158.557 g/mol
AppearanceColorless transparent liquid
Assay (Purity)≥99.0%
Boiling Point180.6±13.0 °C at 760 mmHg
Melting Point10-12 °C
Density1.3±0.1 g/cm3
Flash Point82.2±0.0 °C
Refractive Index1.520
Free Acid Content≤0.3%
Benzoyl Chloride Impurity≤0.1%

Industrial Applications

In the agrochemical sector, this intermediate is predominantly utilized for the synthesis of Flumorph, a highly effective fungicide. The incorporation of the 4-fluorobenzoyl group is essential for the biological activity and environmental stability of the final pesticide product. Our clients in the crop protection industry rely on our consistent supply chain to maintain their production schedules for key agricultural solutions.

Within the pharmaceutical realm, 4-Fluorobenzoyl Chloride acts as a key precursor in the development of tyrosine kinase inhibitors, such as tryphostins. These compounds are vital for research into cellular signaling pathways and potential therapeutic agents targeting ErbB2/neu receptors. Additionally, it is employed in the synthesis of 1,2,4-triazole-3-thiones, which are investigated for their potential antidepressant properties. The high purity of our material ensures minimal side reactions during these sensitive synthetic routes.

Quality Assurance and Safety

Quality is paramount in our production facility. Every batch of 4-Fluorobenzoyl Chloride undergoes rigorous testing using advanced chromatographic methods to verify purity and impurity profiles. We provide a comprehensive Certificate of Analysis (COA) with every shipment, detailing all critical quality attributes. Our facility adheres to international safety standards, ensuring that the product is handled and stored under optimal conditions to prevent degradation.

Regarding safety, this chemical is moisture-sensitive and should be handled in a well-ventilated environment or under inert atmosphere conditions. Proper personal protective equipment, including gloves and eye protection, is recommended during handling. In case of contact with water, hydrolysis may occur, releasing hydrogen chloride gas. Therefore, storage in a cool, dry place with tightly sealed containers is essential to maintain product integrity.

Packaging and Storage

We offer flexible packaging solutions to meet diverse logistical requirements. The standard package is a 25kg drum, which is suitable for most laboratory and pilot plant operations. For larger industrial demands, we can customize packaging according to specific customer requirements. Storage instructions recommend keeping the container tightly closed in a dry and well-ventilated place, ideally at temperatures between 2-8°C for extended shelf life. Our global logistics network ensures timely delivery while maintaining the cold chain if necessary.