104934-54-5

Basic information

• Product Name: 3-N-OCTADECYLTHIOPHENE
• Synonyms: 3-STEARYLTHIOPHENE;3-N-OCTADECYLTHIOPHENE;3-OCTADECYLTHIOPHENE;Octadecylthiophene;3-N-OCTADECYLTHIOPHENE 98+%
• CAS NO: 104934-54-5
• Molecular Formula: C22H40S
• Molecular Weight: 336.62
• Product Categories: 3-Alkylthiophenes (for Conduting Polymer Research);Functional Materials;Reagents for Conducting Polymer Research
• Mol File: 104934-54-5.mol
• Article Data: 5

Chemical Properties

• Melting Point: 36 °C
• Boiling Point: 422.8 °C at 760 mmHg
• Flash Point: 157.6 °C
• Appearance: /
• Density: 0.895 g/cm³
• Vapor Pressure: 5.79E-07mmHg at 25°C
• Refractive Index: 1.488
• Storage Temp.: 0-10°C
• CAS DataBase Reference: 3-N-OCTADECYLTHIOPHENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3-N-OCTADECYLTHIOPHENE(104934-54-5)
• EPA Substance Registry System: 3-N-OCTADECYLTHIOPHENE(104934-54-5)

Safety Data

• Hazardous Substances Data: 104934-54-5(Hazardous Substances Data)

Usage

General Description

3-N-Octadecylthiophene is a chemical compound categorized under a group of organic substances known as thiophenes. Thiophenes are essentially sulfur-containing analogs to benzene and pyrrole and are often used in research and industry for their unique properties. 3-N-Octadecylthiophene, in particular, has the chemical formula C26H48S, suggesting it contains 26 carbon atoms, 48 hydrogen atoms, and a single sulfur atom. Its overall structure comprises an 18-carbon alkyl chain (octadecyl) attached to the 3rd position of a thiophene ring. While there's limited information on its specific uses or properties, like many thiophene derivatives, it may be potentially used in the creation of various polymer materials or in the field of organic electronics.

InChI:InChI=1/C22H40S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22-19-20-23-21-22/h19-21H,2-18H2,1H3

Upstream product

• 872-31-1 3-Bromothiophene 
• 92206-73-0 1-octadecylmagnesium bromide 
• 629-93-6 n-iodooctadecane 

Relevant articles and documents

Synthesis and self-assembly of 5,5′-bis(phenylethynyl)-2,2′-bithiophene-based bolapolyphiles in triangular and square LC honeycombs

A series of X-shaped 5,5′-bis(phenylethynyl)-2,2′-bithiophene-based bolaamphiphiles bearing two long lateral alkyl chains and two terminal glycerol groups has been synthesized by using Kumada and Sonogashira coupling reactions as key steps. The thermotropic liquid crystalline behavior of these compounds was investigated by POM, DSC and X-ray scattering. With elongation of the lateral alkyl chains two different kinds of liquid crystalline phases with honeycomb structures, ColhexΔ/p6mm, formed by (defective) triangular honeycomb cells, and Colsqu/p4mm with square cells were observed for these compounds. UV and PL measurements indicate fluorescent properties making them potential candidates for application in fluorescence sensor devices.

Transition between triangular and square tiling patterns in liquid-crystalline honeycombs formed by tetrathiophene-based bolaamphiphiles

A series of 5,5′′′-diphenyl tetrathiophenes with polar glycerol groups at each end and two lateral flexible chains self-assemble into a series of liquid-crystalline honeycombs, formed by the π-conjugated rods which enclose polygonal prismatic cells filled by the lateral chains. With increasing chain length a discontinuous transition from triangular to square honeycombs takes place. At this transition a periodic honeycomb composed of a mixture of square and triangular cells in a ratio 1:2 was formed at low temperature, whereas at higher temperature a hexagonal columnar phase composed of triangular and randomly distributed rhombic cells, a new kind of cybotactic nematic phase, and also a cybotactic isotropic phase, both composed of square honeycomb fragments, represent the intermediate states. This provides an example of a dynamic self-assembled system where, depending on the molecular mobility, the transition between two periodic structures with different symmetry either leads to an increase of complexity, or to a chaotic regime with reduced order.

Liquid-crystalline triangle honeycomb formed by a dithiophene-based X-shaped bolaamphiphile

Soft supramolecular triangles: The molecule shown displays a new liquid-crystalline phase formed by a periodic array of triangular cylinders. The cylinders are fused to form a honeycomb by hydrogen-bonding networks running along the vertices, and the cells are filled by molten alkyl chains. The thickness of the walls separating the compartments is equal to the width of the π-conjugated rods.