Description

4-(3,5-Dicarboxyphenoxy)Phthalic Acid is a high-purity, multifunctional aromatic carboxylic acid derivative, serving as a critical building block in advanced material synthesis. Its value lies in its unique molecular architecture, featuring multiple reactive carboxyl groups that enable precise polymerization and functionalization. This compound is essential for researchers and manufacturers in the pharmaceutical intermediates, high-performance polymer, and specialty chemical sectors seeking to develop novel materials with tailored properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring rigid, polyfunctional aromatic cores.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for producing high-performance polyimides, polyamides, and polyesters with enhanced thermal stability and mechanical properties.
• Metal-Organic Frameworks (MOFs): Used as an organic linker or ligand in the construction of porous MOF materials for gas storage, separation, and catalysis.
• Dye & Pigment Synthesis: Acts as an intermediate in the manufacture of specialized dyes and organic pigments, contributing to color fastness and molecular complexity.
• Epoxy Resin Hardener/Modifier: Functions as a curing agent or additive to modify the cross-linking density and final properties of epoxy resin systems.
• Chelating Agent: Its multiple carboxylate groups allow it to act as a ligand for metal ions in various analytical or industrial processes.

Basic Information

Product Name	4-(3,5-Dicarboxyphenoxy)Phthalic Acid
CAS No.	1777822-70-4
Molecular Formula	C16H10O9
Molecular Weight	346.25 g/mol
Synonyms	4-(3,5-Dicarboxyphenoxy)phthalic acid; 5-[3,5-Bis(carboxy)phenoxy]benzene-1,2-dicarboxylic acid; 1,2-Benzenedicarboxylic acid, 4-(3,5-dicarboxyphenoxy)-; 4-(3,5-Dicarboxy-phenoxy)-phthalic acid; Phthalic acid, 4-(3,5-dicarboxyphenoxy)-; Tetracarboxylic acid derivative; Aromatic tetracarboxylic acid
EINECS	Contact for details

Quality Control

Our production of 4-(3,5-Dicarboxyphenoxy)Phthalic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and FT-IR to confirm identity and quantify purity. A comprehensive Certificate of Analysis (COA) detailing all test results is 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 (15-25°C). Due to its acidic nature, keep away from incompatible materials such as strong bases and oxidizing agents. The container must be kept tightly sealed to minimize exposure to atmospheric moisture.

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	≤ 0.5%
Heavy Metals	≤ 20 ppm

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