Description

2,5-Bis(4-Chlorophenylamino)Terephthalic Acid is a specialized organic intermediate featuring a terephthalic acid core substituted with chlorinated aniline groups. This molecular structure makes it a valuable precursor for synthesizing high-performance pigments, dyes, and functional polymers. It is primarily sought after by research institutions and industrial manufacturers in the advanced materials, specialty chemicals, and pharmaceutical research sectors for developing novel compounds with specific optical or electronic properties.

Application

• Pigment and Dye Intermediate: A key building block for the synthesis of high-value, color-stable organic pigments and complex dyes.
• Functional Polymer Synthesis: Used in the production of specialized polyamides, polyimides, and other polymers requiring specific chromophoric or electronic characteristics.
• Pharmaceutical Research: Serves as a sophisticated intermediate in the research and development of new active pharmaceutical ingredients (APIs) and diagnostic agents.
• Liquid Crystal and OLED Materials: A potential precursor for creating charge-transport or emissive layers in advanced display and lighting technologies.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring novel organic reactions and creating complex molecular architectures.
• Analytical Chemistry: May be used as a standard or reagent in chromatographic analysis and method development.

Basic Information

Product Name	2,5-Bis(4-Chlorophenylamino)Terephthalic Acid
CAS No.	41680-76-6
Molecular Formula	C26H18Cl2N2O4
Molecular Weight	493.34 g/mol
Synonyms	2,5-Bis[(4-chlorophenyl)amino]terephthalic acid; 2,5-Bis(p-chloroanilino)terephthalic acid; Terephthalic acid, 2,5-bis[(4-chlorophenyl)amino]-; 2,5-Di(4-chloroanilino)terephthalic acid; 4,4'-(1,4-Dihydro-1,4-dioxo-2,5-cyclohexadiene-2,5-diylidene)bis[N-(4-chlorophenyl)amine]; N,N'-(2,5-Dicarboxy-1,4-phenylene)bis(4-chlorobenzenamine)
EINECS	Contact for details

Quality Control

Every batch of 2,5-Bis(4-Chlorophenylamino)Terephthalic Acid is produced and tested under a strict quality management system. We ensure high purity and batch-to-batch consistency through comprehensive analytical techniques including HPLC, NMR, and elemental analysis. A detailed Certificate of Analysis (COA) providing full specification data is supplied with each shipment to guarantee compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
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.