Description

5-(4-Formyl-Phenylethynyl)-Benzene-1,3-Dicarbaldehyde is a high-purity, multi-functional aromatic dialdehyde building block featuring a conjugated ethynyl linker. This compound matters for its role as a critical precursor in the synthesis of advanced organic materials, offering precise molecular architecture control. It is essential for researchers and manufacturers in the fields of organic electronics, pharmaceutical intermediates, and specialty polymer chemistry who require reliable, high-quality raw materials for complex syntheses.

Application

• Organic Electronic Materials: A key monomer for constructing conjugated polymers and small molecules used in Organic Light-Emitting Diodes (OLEDs), Organic Photovoltaics (OPVs), and Field-Effect Transistors (OFETs).
• Pharmaceutical Intermediates: Serves as a versatile scaffold in medicinal chemistry for the development of novel active pharmaceutical ingredients (APIs), particularly those targeting specific receptor sites.
• Metal-Organic Frameworks (MOFs): Used as a rigid, multi-dentate organic linker to synthesize porous coordination polymers with tailored pore sizes for gas storage, separation, and catalysis.
• Ligand Synthesis: Acts as a precursor for creating sophisticated chelating ligands in coordination chemistry and homogeneous catalysis.
• Crosslinking Agent: Employed in the production of high-performance thermosetting resins and polymers, where its aldehyde groups enable covalent network formation.
• Fluorescent Probes & Sensors: Utilized in the design and synthesis of fluorescent markers and chemical sensors due to its extended π-conjugation system.

Basic Information

Product Name	5-(4-Formyl-Phenylethynyl)-Benzene-1,3-Dicarbaldehyde
CAS No.	263746-71-0
Molecular Formula	C17H8O3
Molecular Weight	260.24 g/mol
Synonyms	5-(4-Formylphenylethynyl)isophthalaldehyde; 1,3-Benzenedicarboxaldehyde, 5-[2-(4-formylphenyl)ethynyl]-; 5-(4-Formylphenylethynyl)benzene-1,3-dicarboxaldehyde; 5-(4-Carboxybenzene-1,3-dialdehyde)phenylacetylene; Isophthalaldehyde, 5-(4-formylphenylethynyl)-; Conjugated dialdehyde linker; TPE-iso-CHO; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 5-(4-Formyl-Phenylethynyl)-Benzene-1,3-Dicarbaldehyde is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and batch-to-batch consistency suitable for sensitive research and scale-up applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive); handle and store under an inert atmosphere such as nitrogen or argon for long-term stability.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 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.