Description

Thiophene, 2,3-Diethynyl- (9Ci) is a specialized heterocyclic building block featuring two ethynyl (acetylene) substituents on the thiophene core, offering unique reactivity for advanced material synthesis. This compound matters for its role as a key precursor in the development of conjugated polymers, organic semiconductors, and complex molecular architectures requiring precise cross-coupling reactions. It is primarily needed by researchers and manufacturers in the fields of organic electronics, pharmaceutical intermediates, and materials science for creating novel functional materials.

Application

• Key monomer or cross-linking agent in the synthesis of conjugated polymers for organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Building block for pharmaceutical intermediates, particularly in the development of novel active pharmaceutical ingredients (APIs) with thiophene scaffolds.
• Precursor in materials science for creating metal-organic frameworks (MOFs) and advanced coordination polymers.
• Intermediate for click chemistry applications, utilizing the ethynyl groups for Huisgen cycloaddition reactions.
• Starting material for the synthesis of organic light-emitting diodes (OLED) materials and electroactive dyes.
• Used in academic and industrial R&D for exploring new reactions and properties of ethynyl-substituted heterocycles.

Basic Information

Product Name	Thiophene, 2,3-Diethynyl- (9Ci)
CAS No.	153143-04-5
Molecular Formula	C8H4S
Molecular Weight	132.18 g/mol
Synonyms	2,3-Diethynylthiophene; 2,3-Bis(ethynyl)thiophene; 2,3-Thiophenediylbis(ethyne); Thiophene-2,3-diylbis(ethyne); 2,3-Diethynyl-thiophene; 2,3-Diethynyl-thiophene (9CI); 2,3-Bis(ethynyl)-thiophene
EINECS	Contact for details

Quality Control

Our Thiophene, 2,3-Diethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is 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) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Light yellow to yellow solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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