Description

2,5-Difluoroterephthalic Acid is a high-purity fluorinated aromatic dicarboxylic acid derivative, serving as a critical building block for advanced materials and pharmaceuticals. Its value lies in the strategic placement of fluorine atoms on the terephthalic acid backbone, which significantly modifies electronic properties, thermal stability, and bioavailability in final products. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, particularly for synthesizing active pharmaceutical ingredients (APIs), liquid crystal polymers (LCPs), and high-performance polyesters.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), where the fluorine atoms enhance metabolic stability and membrane permeability.
• Agrochemical Synthesis: Used in creating advanced herbicides and pesticides, leveraging the fluorine substituents to improve efficacy and environmental persistence.
• Liquid Crystal Polymers (LCPs): Serves as a monomer for producing high-performance LCPs with exceptional thermal stability, chemical resistance, and mechanical strength for electronics and automotive applications.
• High-Performance Polyesters & Polyamides: Incorporated as a comonomer to engineer polymers with enhanced thermal properties, solvent resistance, and low dielectric constants for advanced engineering plastics.
• Metal-Organic Frameworks (MOFs): Acts as an organic linker in the construction of porous MOF materials for gas storage, separation, and catalysis.
• Organic Electronic Materials: Utilized in the development of organic semiconductors and electron-transport materials for OLEDs and photovoltaic cells.

Basic Information

Product Name	2,5-Difluoroterephthalic Acid
CAS No.	655-14-1
Molecular Formula	C8H4F2O4
Molecular Weight	202.11 g/mol
Synonyms	2,5-Difluorobenzene-1,4-dicarboxylic acid; Terephthalic acid, 2,5-difluoro-; 1,4-Benzenedicarboxylic acid, 2,5-difluoro-; DFTA; 2,5-DFTA
EINECS	Contact for details

Quality Control

Our 2,5-Difluoroterephthalic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent lot-to-lot performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our production adheres to cGMP principles where applicable, ensuring reliability for sensitive applications in pharmaceutical and advanced material synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	300 - 310 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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