Description

3,4-Difluorophthalic Anhydride is a high-purity fluorinated aromatic anhydride building block essential for advanced material synthesis. Its value lies in its ability to introduce both the reactive anhydride moiety and strategically positioned fluorine atoms into target molecules, enabling precise tuning of material properties. This compound is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and high-performance polymers.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, particularly those targeting central nervous system (CNS) disorders, where the fluorine atoms can enhance metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and insecticides, with the difluoro-substituted phthalic core contributing to improved efficacy and environmental profile.
• Polyimide Monomer: Serves as a critical monomer for producing high-temperature, chemically resistant fluorinated polyimides used in aerospace, microelectronics, and flexible display applications.
• Epoxy Resin Modifier: Incorporated to enhance the thermal stability, moisture resistance, and dielectric properties of epoxy resin systems for advanced composites and electronic encapsulants.
• Liquid Crystal Material Synthesis: Employed as a building block for fluorinated liquid crystal compounds, which are vital components in display technologies.
• Organic Light-Emitting Diode (OLED) Materials: Used in the development of electron-transport and host materials for more efficient and stable OLED devices.

Basic Information

Product Name	3,4-Difluorophthalic Anhydride
CAS No.	777860-08-9
Molecular Formula	C8H2F2O3
Molecular Weight	184.10 g/mol
Synonyms	3,4-Difluorophthalic Anhydride; 3,4-Difluorobenzene-1,2-dicarboxylic Anhydride; 4,5-Difluorophthalic Anhydride; 1,3-Dioxo-1,3-dihydroisobenzofuran-5,6-difluoride; 5,6-Difluoroisobenzofuran-1,3-dione; Difluorophthalic Anhydride; 777860-08-9; 3,4-DFPA
EINECS	Contact for details

Quality Control

Our 3,4-Difluorophthalic Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under dry, inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and moisture.

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%
Single Impurity (HPLC)	≤ 1.0%
Heavy Metals	≤ 10 ppm

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