Description

2-Chloroterephthalic Acid is a halogenated derivative of terephthalic acid, serving as a key organic intermediate and building block in advanced chemical synthesis. Its value lies in the strategic introduction of a chlorine atom onto the aromatic ring, which significantly alters reactivity and physical properties for downstream applications. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel compounds with enhanced performance characteristics.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a functionalized terephthalate core.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where the chlorinated aromatic structure imparts specific biological activity.
• Liquid Crystal & OLED Materials: Serves as a building block for creating advanced organic electronic materials, including liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).
• Polymer Modification: Employed to synthesize modified polyesters and polyamides, introducing chlorine functionality to alter polymer properties like flame retardancy, solubility, or thermal stability.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of complex organic dyes and high-performance pigments.
• Research & Development: A valuable reagent in organic chemistry research for coupling reactions and the development of new synthetic methodologies.
• Coordination Chemistry: Can function as a ligand or precursor for metal-organic frameworks (MOFs) and other coordination polymers.

Basic Information

Product Name	2-Chloroterephthalic Acid
CAS No.	1967-31-3
Molecular Formula	C8H5ClO4
Molecular Weight	200.57 g/mol
Synonyms	2-Chloro-1,4-benzenedicarboxylic Acid; 2-Chloroterephthalic Acid; Terephthalic Acid, 2-Chloro-; 2-Chlorobenzene-1,4-dicarboxylic Acid; 2-Chloro-p-phthalic Acid; 2-Chloroterephthalicacid; 2-Cl-TA; 2-CTPA
EINECS	217-816-7

Quality Control

Our 2-Chloroterephthalic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high-purity standards required for sensitive applications in pharmaceutical and advanced material synthesis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

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, strong oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C (dec.)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

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