Description

2-Ethynylterephthalic Acid is a specialized aromatic dicarboxylic acid derivative featuring a reactive ethynyl group, making it a valuable bifunctional building block for advanced material synthesis. This compound matters for its unique ability to participate in both polycondensation and click chemistry reactions, enabling the creation of polymers and frameworks with tailored properties. It is primarily needed by researchers and manufacturers in the fields of high-performance polymers, metal-organic frameworks (MOFs), and pharmaceutical intermediates.

Application

• Polymer Chemistry: As a monomer for synthesizing novel polyesters, polyamides, and other functional polymers with acetylene side chains.
• Metal-Organic Frameworks (MOFs): Serving as an organic linker to construct porous coordination polymers with specific surface areas and catalytic properties.
• Pharmaceutical Intermediates: Utilized in the research and development of active pharmaceutical ingredients (APIs) and drug candidates.
• Click Chemistry: The terminal alkyne group enables efficient Huisgen cycloaddition (e.g., copper-catalyzed azide-alkyne cycloaddition) for bioconjugation and material functionalization.
• Liquid Crystal & Electronic Materials: A precursor for developing organic semiconductors and liquid crystal materials due to its rigid, conjugated structure.
• Crosslinking Agent: Used to introduce crosslinks into polymer networks, enhancing thermal and mechanical stability.
• Organic Synthesis: A versatile intermediate for constructing complex organic molecules in academic and industrial research.

Basic Information

Product Name	2-Ethynylterephthalic Acid
CAS No.	1215861-81-6
Molecular Formula	C10H6O4
Molecular Weight	190.15 g/mol
Synonyms	2-Ethynylbenzene-1,4-dicarboxylic Acid; Terephthalic Acid, 2-Ethynyl-; 1,4-Benzenedicarboxylic acid, 2-ethynyl-; 2-Ethynyl-1,4-benzenedicarboxylic Acid
EINECS	Contact for details

Quality Control

Our 2-Ethynylterephthalic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality systems are designed to support research and development needs with reliable, traceable materials.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm

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