Description

1,4-Benzenedicarboxylic Acid, 2,3-Difluoro- is a high-purity, fluorinated derivative of terephthalic acid, serving as a critical advanced intermediate in modern synthetic chemistry. Its core value lies in introducing fluorine atoms and carboxylic acid functionality into complex molecular architectures, enabling the fine-tuning of material properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require precise building blocks for developing novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of fluorinated active pharmaceutical ingredients (APIs), where fluorine substitution can enhance metabolic stability, bioavailability, and binding affinity.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and insecticides, leveraging the fluorine atoms to improve efficacy and environmental profile.
• Liquid Crystal & OLED Materials: Serves as a precursor for fluorinated aromatic cores in electronic display materials, contributing to improved thermal stability, dielectric anisotropy, and luminescent properties.
• High-Performance Polymer Monomer: Employed in the synthesis of fluorinated polyesters, polyamides, and polyimides, resulting in polymers with enhanced chemical resistance, thermal stability, and low dielectric constants.
• Metal-Organic Framework (MOF) Linker: The difluorinated terephthalate moiety can act as a functionalized organic linker for constructing MOFs with tailored pore chemistry for gas storage, separation, or catalysis.
• Organic Synthesis Building Block: Utilized in cross-coupling reactions, esterifications, and amide formations to introduce fluorinated aromatic dicarboxylic acid groups into target molecules.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, 2,3-Difluoro-
CAS No.	1220509-29-4
Molecular Formula	C8H4F2O4
Molecular Weight	202.11 g/mol
Synonyms	2,3-Difluoroterephthalic Acid; 2,3-Difluoro-1,4-benzenedicarboxylic Acid; 2,3-Difluorobenzene-1,4-dicarboxylic Acid; Difluoroterephthalic Acid; Terephthalic Acid, 2,3-Difluoro Derivative; 1,4-Benzenedicarboxylic Acid, Difluoro-; 2,3-DFTA
EINECS	Contact for details

Quality Control

Our 1,4-Benzenedicarboxylic Acid, 2,3-Difluoro- is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support custom synthesis and purity grades (e.g., >98%, >99%) to meet specific research and development or commercial production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The compound is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere such as nitrogen or argon for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm
Single Impurity (HPLC)	≤ 0.5%

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