Description

4,4'-(Ethyne-1,2-Diyl)Dibenzenethiol is a high-purity organic building block featuring a rigid, linear ethynyl bridge connecting two terminal thiophenol groups. This compound matters for its role as a critical precursor in materials science, enabling the synthesis of advanced polymers, conductive materials, and metal-organic frameworks (MOFs) with tailored electronic and structural properties. It is primarily needed by R&D and production teams in the electronics, specialty polymer, and nanotechnology sectors for creating next-generation functional materials.

Application

• Monomer for Conjugated Polymers: Serves as a key monomer in the synthesis of polythiophenes and other conductive polymers for organic electronics (OFETs, OLEDs).
• Ligand in Coordination Chemistry: Acts as a bidentate ligand for transition metals (e.g., Pd, Pt, Au) in catalysis and the construction of metal-organic frameworks (MOFs).
• Surface Modification Agent: Used for functionalizing gold, silver, and other metal surfaces via strong Au-S bonds for sensor and nano-device fabrication.
• Crosslinking Agent: Employed in the production of high-performance, cross-linked polymer networks with enhanced thermal and mechanical stability.
• Intermediate for Liquid Crystals: A building block for synthesizing rigid-rod liquid crystal molecules and discotic mesogens.
• Precursor for Organic Synthesis: Utilized in Sonogashira coupling and other cross-coupling reactions to create complex, π-conjugated molecular architectures.

Basic Information

Product Name	4,4'-(Ethyne-1,2-Diyl)Dibenzenethiol
CAS No.	322639-14-5
Molecular Formula	C₁₄H₁₀S₂
Molecular Weight	242.36 g/mol
Synonyms	1,4-Bis(4-mercaptophenyl)buta-1,3-diyne (common name); 4,4'-Diethynylbiphenyl-1,1'-dithiol; 4,4'-(1,3-Butadiyne-1,4-diyl)dibenzenethiol; p,p'-Bis(mercaptophenyl)butadiyne; [1,1'-Biphenyl]-4,4'-dithiol, 4,4'-diethynyl-; 4,4'-(Buta-1,3-diyne-1,4-diyl)dibenzenethiol; 4,4'-(Ethyne-1,2-diyl)bis(benzenethiol); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 4,4'-(Ethyne-1,2-Diyl)Dibenzenethiol is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, essential for sensitive materials synthesis. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and degradation. This material is easily oxidized; prolonged exposure to air or elevated temperatures should be avoided. The storage area should be cool, dry, and well-ventilated.

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.