Description

3-n-Octadecylthiophene is a high-purity, long-chain alkyl-substituted thiophene derivative, a key organic intermediate in advanced materials science. Its value lies in its ability to impart specific electronic and self-assembly properties to polymers and functional coatings. This compound is essential for R&D and production in the organic electronics, specialty polymer, and advanced material synthesis sectors.

Application

• Organic Semiconductor Precursor: A critical building block for the synthesis of conjugated polymers and small molecules used in organic field-effect transistors (OFETs) and photovoltaic cells.
• Conductive Polymer Synthesis: Serves as a monomer or co-monomer for creating polythiophene-based conductive materials with tailored side-chain properties.
• Liquid Crystal & Self-Assembled Monolayer (SAM) Research: The long octadecyl chain facilitates molecular ordering, making it valuable for developing liquid crystalline materials and surface-modifying SAMs.
• Chemical Sensor Development: Used to fabricate sensitive layers in chemiresistive and optical sensors due to its π-conjugated system's interaction with analytes.
• Specialty Additive for Functional Coatings: Incorporated into coatings to modify surface energy, provide corrosion inhibition, or introduce specific electronic functionalities.
• Academic & Industrial R&D: A fundamental reagent for exploring structure-property relationships in π-conjugated systems and novel organic electronic materials.

Basic Information

Product Name	3-n-Octadecylthiophene
CAS No.	104934-54-5
Molecular Formula	C22H40S
Molecular Weight	336.61 g/mol
Synonyms	3-Octadecylthiophene; Thiophene, 3-octadecyl-; 3-(Octadecyl)thiophene; 3-n-Octadecylthiophene; 3-C18-Thiophene; 3-Stearylthiophene; 3-Heptadecylmethylthiophene; Octadecylthiophene
EINECS	Contact for details

Quality Control

Our 3-n-Octadecylthiophene is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and identity confirmation. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0% (Standard Grade)
Melting Point	Contact for details

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