Description

Dimethyl 2,5-Diethynylterephthalic Acid is a high-purity, multifunctional organic building block characterized by its symmetrical terephthalate core and terminal ethynyl groups. This compound matters for its role as a critical precursor in advanced materials science, enabling the synthesis of rigid, conjugated polymers and complex molecular architectures. It is essential for researchers and manufacturers in the fields of organic electronics, specialty polymers, and pharmaceutical intermediates who require precise molecular control.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Metal-Organic Framework (MOF) Synthesis: Serves as a versatile linker molecule for constructing novel porous coordination polymers with tailored pore sizes and functionalities for gas storage or catalysis.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) that require a rigid, aromatic backbone with reactive alkyne handles for further derivatization.
• Cross-linking Agent: The terminal ethynyl groups enable its use as a cross-linker in high-performance thermoset resins, enhancing thermal and mechanical stability.
• Dendrimer and Hyperbranched Polymer Core: Acts as a core building block for the iterative synthesis of well-defined dendritic structures with applications in nanotechnology and drug delivery.
• Click Chemistry Substrate: Ideal for copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, facilitating efficient and modular construction of complex molecules in medicinal chemistry and materials science.

Basic Information

Product Name	Dimethyl 2,5-Diethynylterephthalic Acid
CAS No.	944458-59-7
Molecular Formula	C14H10O4
Molecular Weight	242.23 g/mol
Synonyms	2,5-Diethynylterephthalic Acid Dimethyl Ester; Dimethyl 2,5-diethynylbenzene-1,4-dicarboxylate; 1,4-Benzenedicarboxylic acid, 2,5-diethynyl-, dimethyl ester; 2,5-Diethynyl-1,4-benzenedicarboxylic Acid Dimethyl Ester; DEDTA; DMDETA
EINECS	Contact for details

Quality Control

Our Dimethyl 2,5-Diethynylterephthalic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FT-IR, to ensure high chemical purity and structural integrity. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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