Description

4-Fluorobenzene-1,3-Dioyl Dichloride is a high-purity aromatic diacid chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its dual reactive sites, enabling the efficient construction of complex polymers and functional molecules under controlled conditions. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and specialty polymer industries seeking to introduce fluorinated aromatic structures into their target compounds.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing fluorinated benzamide or benzimide motifs.
• Polymer Chemistry: Monomer for the production of high-performance polyamides, polyimides, and polyesters, where the fluorine atom imparts enhanced thermal stability and chemical resistance.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and plant growth regulators that benefit from fluorinated aromatic cores for improved bioavailability and environmental persistence.
• Liquid Crystal & OLED Materials: Building block for fluorinated aromatic components in electronic display materials and organic light-emitting diodes (OLEDs).
• Dye & Pigment Manufacturing: Intermediate for synthesizing specialized fluorinated dyes and pigments with unique color fastness and spectral properties.
• Cross-linking Agent: Functions as a reactive cross-linker in resin and coating formulations to enhance mechanical strength and durability.

Basic Information

Product Name	4-Fluorobenzene-1,3-Dioyl Dichloride
CAS No.	327-94-6
Molecular Formula	C8H3Cl2FO2
Molecular Weight	221.01 g/mol
Synonyms	4-Fluoroisophthaloyl Dichloride; 1,3-Bis(chlorocarbonyl)-4-fluorobenzene; 4-Fluoroisophthalic Acid Dichloride; Isophthaloyl Dichloride, 4-Fluoro-; 4-Fluorobenzene-1,3-dicarbonyl Dichloride; 4-Fluorobenzene-1,3-dicarboxylic Acid Dichloride; 4-Fluoro-1,3-benzenedicarbonyl Chloride
EINECS	206-322-7

Quality Control

Our 4-Fluorobenzene-1,3-Dioyl Dichloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance 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). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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