Description

1,3-Benzenedicarboxylic Acid, 5,5'-(1,4-Phenylenedi-2,1-Ethynediyl)Bis- is a high-purity, specialized organic compound featuring a conjugated aromatic and ethynediyl backbone, making it a valuable advanced intermediate for sophisticated chemical synthesis. Its unique molecular architecture is engineered to serve as a critical building block in the development of high-performance materials. This product is essential for R&D and production teams in the advanced materials, pharmaceutical, and specialty chemical sectors seeking to develop novel polymers, liquid crystals, or organic electronic components.

Application

• Advanced Polymer Synthesis: A key monomer for constructing high-temperature resistant polymers, polyimides, and polyamides with tailored thermal and mechanical properties.
• Organic Electronic Materials: Serves as a precursor for organic semiconductors, conductive polymers, and materials used in OLEDs (Organic Light-Emitting Diodes) and OFETs (Organic Field-Effect Transistors).
• Liquid Crystal Development: Used in the synthesis of novel liquid crystal compounds for display technologies and optical devices.
• Pharmaceutical Intermediates: Acts as a sophisticated building block in the multi-step synthesis of complex active pharmaceutical ingredients (APIs).
• Coordination Chemistry & Ligand Design: The dicarboxylic acid groups and rigid structure make it suitable for designing novel metal-organic frameworks (MOFs) and catalytic ligands.
• Specialty Dyes and Pigments: Utilized in the creation of high-stability, functional dyes and pigments for niche industrial applications.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, 5,5'-(1,4-Phenylenedi-2,1-Ethynediyl)Bis-
CAS No.	957014-40-3
Molecular Formula	C30H14O8
Molecular Weight	502.43 g/mol
Synonyms	5,5'-(1,4-Phenylenedi-2,1-ethynediyl)bis(1,3-benzenedicarboxylic acid); 1,4-Bis(3,5-dicarboxyphenylethynyl)benzene; Terephthalic acid, 4,4'-(1,4-phenylene)bis(2-ethyne-1,1-diyl)bis-; Bis(3,5-dicarboxyphenylethynyl)benzene; Conjugated dicarboxylic acid monomer; Isophthalic acid-based diacetylene derivative
EINECS	Contact for details

Quality Control

Every batch of 1,3-Benzenedicarboxylic Acid, 5,5'-(1,4-Phenylenedi-2,1-Ethynediyl)Bis- is manufactured and tested under a strict quality management system to ensure batch-to-batch consistency and high purity for demanding applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its chemical nature as a strong acid/organic solvent derivative, keep away from incompatible materials such as strong bases and oxidizing agents. The container must be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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