Description

Tetrachlorophthalic Acid is a halogenated aromatic dicarboxylic acid derivative, serving as a critical high-purity intermediate in advanced chemical synthesis. Its value lies in its ability to introduce both carboxylic acid functionality and chlorine substituents, enabling the production of specialized polymers, dyes, and agrochemicals with enhanced properties. This compound is essential for manufacturers and R&D laboratories in the polymer, specialty chemical, and pharmaceutical sectors seeking to develop flame-retardant materials, high-performance pigments, or complex organic molecules.

Application

• Polymer Intermediate: A key monomer for synthesizing specialized polyimides and polyester resins with inherent flame retardancy and thermal stability.
• Dye and Pigment Manufacturing: Serves as a precursor for producing high-value chlorinated phthalocyanine pigments and other complex colorants.
• Agrochemical Synthesis: Used in the production of certain herbicides and plant growth regulators where the tetrachlorophthalic moiety is required for biological activity.
• Pharmaceutical Intermediate: Employed in the research and development of active pharmaceutical ingredients (APIs) requiring a halogenated aromatic backbone.
• Chemical Research & Development: A versatile building block in organic synthesis for creating novel compounds in academic and industrial R&D settings.
• Epoxy Curing Agent Modifier: Can be used to modify properties of epoxy resin systems, enhancing chemical resistance.

Basic Information

Product Name	Tetrachlorophthalic Acid
CAS No.	632-58-6
Molecular Formula	C8H2Cl4O4
Molecular Weight	303.91 g/mol
Synonyms	3,4,5,6-Tetrachlorophthalic Acid; Tetrachlorobenzene-1,2-dicarboxylic Acid; 1,2-Benzenedicarboxylic acid, 3,4,5,6-tetrachloro-; TCPA; NSC 403108
EINECS	211-182-2

Quality Control

Our Tetrachlorophthalic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A Certificate of Analysis (COA) detailing the results for each batch is provided to guarantee traceability and compliance with your technical requirements.

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 heat, sparks, and open flame. Ensure the storage area is separate from strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	255°C - 265°C
Loss on Drying	≤ 0.5%
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.