Description

2,2':5',2''-Terthiophene, 5,5''-Diiodo- is a high-purity, functionalized terthiophene derivative, a key building block in advanced materials science. This compound matters for its role as a critical precursor in the synthesis of conjugated polymers and organic semiconductors, where its molecular structure allows for precise tuning of electronic properties. It is essential for researchers and manufacturers in the fields of organic electronics, photovoltaics, and chemical sensing who require reliable, high-quality intermediates for cutting-edge development.

Application

• Organic Semiconductor Synthesis: A fundamental monomer for constructing p-type semiconducting polymers and small molecules used in organic field-effect transistors (OFETs).
• Photovoltaic Materials: Serves as a core component in the development of donor-acceptor copolymers for organic solar cells (OSCs) and perovskite solar cells.
• Electroluminescent Devices: Used in the research and production of light-emitting electrochemical cells (LECs) and OLED materials.
• Chemical Sensors: Acts as a sensitive layer material in chemiresistive and fluorescent sensors for detecting vapors and analytes.
• Electrochromic Materials: Employed in the synthesis of polymers that change color in response to an electrical stimulus.
• Academic & Industrial R&D: A vital reagent for exploring structure-property relationships in π-conjugated systems and novel organic electronic devices.

Basic Information

Product Name	2,2':5',2''-Terthiophene, 5,5''-Diiodo-
CAS No.	104499-99-2
Molecular Formula	C12H6I2S3
Molecular Weight	547.18 g/mol
Synonyms	5,5''-Diiodo-2,2':5',2''-terthiophene; 5,5''-Diiodoterthiophene; 2,2':5',2''-Terthiophene, 5,5''-diiodo-; Diiodoterthiophene; 5,5'-Diiodo-2,2':5',2''-terthiophene (common alternate numbering); 5,5''-Diiodo-[2,2':5',2''-terthiophene]; 5,5''-Diiodo-α-terthiophene
EINECS	Contact for details

Quality Control

Every batch of 2,2':5',2''-Terthiophene, 5,5''-Diiodo- undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency, critical for reproducible research and manufacturing outcomes. Our quality assurance protocols include HPLC, NMR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality management systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under inert atmosphere when appropriate for prolonged use.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (HPLC)	Conforms
Identification (NMR)	Conforms
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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