Description

1,4-Bis[(Trimethylsilyl)ethynyl]benzene is a high-purity, organosilicon building block featuring two terminal alkyne groups protected by trimethylsilyl (TMS) moieties. This compound is valued for its role as a versatile synthon in advanced materials science and pharmaceutical research, enabling precise molecular construction. It is primarily sought by R&D chemists and process engineers in the fields of organic electronics, polymer chemistry, and medicinal chemistry for creating conjugated systems and complex molecular architectures.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), field-effect transistors (OFETs), and photovoltaic cells.
• Pharmaceutical Intermediate: Serves as a protected alkyne building block in the synthesis of targeted drug candidates and complex bioactive molecules via click chemistry (e.g., CuAAC reactions).
• Metal-Organic Framework (MOF) Linker: Used to construct functionalized MOFs with tailored porosity and electronic properties for gas storage, separation, and catalysis.
• Dendrimer and Polymer Chemistry: Enables the controlled growth of dendritic structures and linear polymers with precise architecture through iterative coupling reactions.
• Surface Functionalization Agent: Employed to modify material surfaces (e.g., silicon, gold) with stable, functional organic layers for sensor and device applications.
• Ligand Synthesis: Acts as a precursor for creating sophisticated ligands used in catalysis and coordination chemistry.

Basic Information

Product Name	1,4-Bis[(Trimethylsilyl)ethynyl]benzene
CAS No.	17938-13-5
Molecular Formula	C16H22Si2
Molecular Weight	270.51 g/mol
Synonyms	1,4-Bis(trimethylsilylethynyl)benzene; p-Bis(trimethylsilylethynyl)benzene; 1,4-Di(trimethylsilylethynyl)benzene; 1,4-Bis[(trimethylsilyl)ethynyl]benzol; Benzene, 1,4-bis[(trimethylsilyl)ethynyl]-; TMS-DEB; 1,4-Bis(2-trimethylsilylethynyl)benzene
EINECS	Contact for details

Quality Control

Our 1,4-Bis[(Trimethylsilyl)ethynyl]benzene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and FT-IR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with customer specifications and internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The product is moisture-sensitive; keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white 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.