Description

Benzoic Acid, 4,4'-[(4,5-Dicyano-3,6-Difluoro-1,2-Phenylene)Bis(Oxy)]Bis-, Diethyl Ester (9Ci) is a high-purity, multifunctional organic intermediate characterized by its complex aromatic structure incorporating cyano and fluoro substituents. This compound matters for its role as a critical building block in advanced material synthesis, offering precise molecular architecture for demanding applications. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those requiring complex, fluorinated aromatic cores.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its difluoro and dicyano groups contribute to biological activity and environmental stability.
• Specialty Polymer & Material Science: Acts as a monomer or cross-linking agent for high-performance polymers, liquid crystals, and organic electronic materials.
• Organic Synthesis & Chemical Research: Employed as a versatile building block in academic and industrial laboratories for constructing complex molecular architectures.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized colorants and functional dyes due to its conjugated benzoic acid ester system.

Basic Information

Product Name	Benzoic Acid, 4,4'-[(4,5-Dicyano-3,6-Difluoro-1,2-Phenylene)Bis(Oxy)]Bis-, Diethyl Ester (9Ci)
CAS No.	147839-15-4
Molecular Formula	C28H20F2N2O6
Molecular Weight	506.47 g/mol
Synonyms	4,4'-(4,5-Dicyano-3,6-difluoro-1,2-phenylene)bis(oxy)dibenzoic acid diethyl ester; Diethyl 4,4'-(4,5-dicyano-3,6-difluoro-1,2-phenylene)bis(oxy)dibenzoate; 1,2-Benzenedicarbonitrile, 4,5-difluoro-3,6-bis[4-(ethoxycarbonyl)phenoxy]-; 147839-15-4; 4,4'-(4,5-Dicyano-3,6-difluorobenzene-1,2-diyl)bis(oxy)dibenzoic Acid Diethyl Ester
EINECS	Contact for details

Quality Control

Our Benzoic Acid, 4,4'-[(4,5-Dicyano-3,6-Difluoro-1,2-Phenylene)Bis(Oxy)]Bis-, Diethyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are 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 area at a controlled room temperature (typically 15-25°C). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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