Description

4,6-Dichloroisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, distinguished by its two strategically positioned chlorine atoms on the isophthalic acid backbone. This compound serves as a critical advanced intermediate for synthesizing high-performance polymers and specialty chemicals, where its unique structure imparts valuable properties like thermal stability and chemical resistance. It is primarily required by R&D chemists and process engineers in the pharmaceutical, agrochemical, and polymer industries for developing novel active ingredients and engineered materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in drug discovery programs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• High-Performance Polymer Monomer: Serves as a monomer or co-monomer for engineering plastics, liquid crystal polymers (LCPs), and polyimides, enhancing thermal and mechanical properties.
• Metal-Organic Framework (MOF) Precursor: Employed in the construction of porous coordination polymers for gas storage, separation, and catalysis.
• Dye and Pigment Intermediate: Used in the synthesis of complex organic dyes and pigments for specialized applications.
• Cross-linking Agent: Functions as a cross-linker in resin and coating formulations to improve hardness and chemical resistance.

Basic Information

Product Name	4,6-Dichloroisophthalic Acid
CAS No.	6660-65-7
Molecular Formula	C8H4Cl2O4
Molecular Weight	235.02 g/mol
Synonyms	4,6-Dichloro-1,3-benzenedicarboxylic Acid; Isophthalic Acid, 4,6-Dichloro-; 4,6-Dichlorobenzene-1,3-dicarboxylic Acid; 6660-65-7; DCIPA
EINECS	229-706-8

Quality Control

Our 4,6-Dichloroisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting industry standards. Certificates of Analysis (COA) detailing all specified parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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