Description

2,4-Dichloroisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, distinguished by its two strategically positioned chlorine substituents. This compound matters as a versatile and critical building block in advanced organic synthesis, offering precise control over molecular architecture for creating complex, high-value materials. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing active ingredients, intermediates, and functional monomers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a rigid, substituted benzoic acid core.
• Agrochemical Synthesis: Building block for herbicides, fungicides, and plant growth regulators where the dichloro-substituted aromatic ring provides specific bioactivity.
• Polymer & Material Science: Monomer for producing high-performance polyamides, polyesters, and liquid crystal polymers (LCPs) with enhanced thermal stability and chemical resistance.
• Organic Ligand & Chelator: Used to synthesize complexing agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Dyestuff & Pigment Intermediate: Serves in the manufacture of specialized pigments and dyes with improved color fastness and properties.
• Cross-linking Agent: Utilized in epoxy resin systems and other thermosetting polymers to modify mechanical and thermal properties.

Basic Information

Item	Detail
Product Name	2,4-Dichloroisophthalic Acid
CAS No.	50903-03-2
Molecular Formula	C8H4Cl2O4
Molecular Weight	235.02 g/mol
Synonyms	2,4-Dichloro-1,3-benzenedicarboxylic Acid; Isophthalic Acid, 2,4-Dichloro-; 2,4-Dichlorobenzene-1,3-dicarboxylic Acid; 50903-03-2; NSC 163082; 1,3-Benzenedicarboxylic acid, 2,4-dichloro-
EINECS	Contact for details

Quality Control

Our 2,4-Dichloroisophthalic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

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

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