Description

3,5-Diethynyl-Benzoic Acid is a high-value, multifunctional aromatic building block characterized by its two terminal alkyne groups and carboxylic acid functionality. This unique molecular architecture makes it a critical intermediate for synthesizing advanced materials and complex organic molecules. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science sectors who require precise, customizable scaffolds for drug discovery, polymer synthesis, and the development of metal-organic frameworks (MOFs).

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for creating novel molecular architectures with specific biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for the production of specialty polymers, conductive polymers, and high-performance resins via click chemistry (e.g., copper-catalyzed azide-alkyne cycloaddition).
• Metal-Organic Frameworks (MOFs): Utilized as an organic linker or strut to construct porous, crystalline MOFs with applications in gas storage, separation, and catalysis.
• Agrochemical Synthesis: Employed in the research and development of new crop protection agents and herbicides, leveraging its reactive sites for structural diversification.
• Ligand & Catalyst Development: Functions as a backbone for creating novel chelating ligands and organometallic catalysts used in asymmetric synthesis and other catalytic processes.
• Surface Functionalization: Used to modify surfaces (e.g., nanoparticles, electrodes) with alkyne groups for subsequent bio-conjugation or material property enhancement.

Basic Information

Product Name	3,5-Diethynyl-Benzoic Acid
CAS No.	883106-26-1
Molecular Formula	C11H6O2
Molecular Weight	170.17 g/mol
Synonyms	Benzoic acid, 3,5-diethynyl-; 3,5-Bis(ethynyl)benzoic acid; 3,5-Diethynylbenzoic acid; 1,3-Diethynyl-5-carboxybenzene; 5-Carboxy-1,3-diethynylbenzene
EINECS	Contact for details

Quality Control

Our 3,5-Diethynyl-Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment and is available upon request to support your quality assurance and regulatory needs.

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 hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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