Description

1,3-Benzenedicarboxylic Acid, 5,5'-(9H-Fluorene-2,7-Diyl)Bis- is a high-purity, functionalized aromatic dicarboxylic acid derivative designed for advanced material synthesis. This compound matters as a critical building block (monomer) for creating polymers and frameworks with tailored thermal, mechanical, and optical properties. It is primarily needed by R&D and production teams in the specialty polymers, organic electronics, and pharmaceutical intermediates sectors.

Application

• Monomer for High-Performance Polymers: Key precursor for polyamides, polyimides, and polyesters, imparting rigidity and thermal stability.
• Metal-Organic Framework (MOF) Synthesis: Serves as an organic linker to construct porous crystalline materials for gas storage, separation, and catalysis.
• Organic Electronic Materials: Used in the development of semiconductors, hole-transport materials, and emitters for OLEDs and OFETs due to its conjugated fluorene core.
• Pharmaceutical Intermediate: Acts as a sophisticated scaffold in the synthesis of complex active pharmaceutical ingredients (APIs).
• Cross-linking Agent: Enhances the network density and performance of epoxy resins and other thermosetting polymers.
• Liquid Crystal Polymers (LCPs): Contributes to the mesogenic structure of high-temperature, high-strength LCPs.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, 5,5'-(9H-Fluorene-2,7-Diyl)Bis-
CAS No.	1424351-59-6
Molecular Formula	C30H18O8
Molecular Weight	506.46 g/mol
Synonyms	5,5'-(9H-Fluorene-2,7-diyl)diisophthalic Acid; 2,7-Bis(3,5-dicarboxyphenyl)-9H-fluorene; 2,7-Bis(3,5-dicarboxyphenyl)fluorene; Fluorene-2,7-diylbis(5-isophthalic acid); 1,3-Benzenedicarboxylic acid, 5,5'-(9H-fluorene-2,7-diyl)bis-; Fluorene-based tetracarboxylic acid
EINECS	Contact for details

Quality Control

Our production of 1,3-Benzenedicarboxylic Acid, 5,5'-(9H-Fluorene-2,7-Diyl)Bis- adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (NMR, IR), to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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