Description

4-(4-Carboxy-2,3,5,6-Tetrafluoro-Phenyl)-2,3,5,6-Tetrafluoro-Benzoic Acid is a highly fluorinated aromatic dicarboxylic acid derivative, serving as a critical advanced intermediate in specialty chemical synthesis. Its unique perfluorinated biphenyl structure provides exceptional chemical and thermal stability, making it a valuable building block for high-performance materials. This compound is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and advanced polymer industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules, particularly those requiring fluorinated aromatic systems for enhanced metabolic stability and bioavailability.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and pesticides where the introduction of fluorine atoms improves efficacy and environmental persistence.
• Advanced Polymer Monomer: Used in the production of high-performance, thermally stable fluoropolymers and specialty polyimides for electronics and aerospace applications.
• Liquid Crystal & OLED Materials: Serves as a core component in the synthesis of fluorinated liquid crystals and organic light-emitting diode (OLED) materials, contributing to improved electronic properties.
• Metal-Organic Framework (MOF) Precursor: The dicarboxylic acid functionality allows it to act as a linker in constructing porous, fluorinated MOFs for gas storage and separation.
• Specialty Chemical Research: Essential reagent in academic and industrial R&D for exploring new fluorination chemistry and creating novel fluorinated compounds.

Basic Information

Product Name	4-(4-Carboxy-2,3,5,6-Tetrafluoro-Phenyl)-2,3,5,6-Tetrafluoro-Benzoic Acid
CAS No.	5216-23-9
Molecular Formula	C14H2F8O4
Molecular Weight	386.15 g/mol
Synonyms	Perfluoro-4,4'-biphenyldicarboxylic Acid; 2,3,5,6-Tetrafluoro-4'-(2,3,5,6-tetrafluoro-4-carboxyphenyl)biphenyl-4-carboxylic Acid; 4,4'-(Perfluorobiphenyl-4,4'-diyl)dibenzoic Acid; Octafluorobiphenyl-4,4'-dicarboxylic Acid; 4,4'-(Perfluoro-1,1'-biphenyl-4,4'-diyl)bis(2,3,5,6-tetrafluorobenzoic Acid); Pentafluorophenyl Tetrafluoroterephthalic Acid Derivative; CAS 5216-23-9
EINECS	Contact for details

Quality Control

Our production of 4-(4-Carboxy-2,3,5,6-Tetrafluoro-Phenyl)-2,3,5,6-Tetrafluoro-Benzoic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and KF titration for moisture content, to ensure consistency and reliability. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing the product meets your specified research or production-grade requirements.

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 (moisture-sensitive) nature, the container must be kept sealed under dry conditions to prevent degradation. For long-term storage, consider using a desiccator or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm

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