1-Octanethiol

CAS 111-88-6CH3(CH2)7SHMicro / NanoElectronics

1-Octanethiol (CAS: 111-88-6), with the molecular formula CH3(CH2)7SH and a molar mass of 146.29 g/mol, is an alkyl thiol. This compound is a key reagent in materials science, particularly for surface modification and self-assembly applications. Its chemical properties make it valuable in micro/nanoelectronics for creating functionalised surfaces and in self-assembled monolayer (SAM) formation.

IUPAC: n-Octyl mercaptan,Mercaptan C8,Octyl mercaptan
Synonyms: n-Octyl mercaptanMercaptan C8Octyl mercaptan

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1-Octanethiol (CH3(CH2)7SH) — chemical structure, CAS 111-88-6; Materials Science, fine chemical supplied by Tech Serve Solutions

Alkyl ThiolsMaterials ScienceMicro/NanoElectronicsSelf-Assembly MaterialsThiols More...

01 /Applications

Self-Assembled Monolayers (SAMs)

1-Octanethiol is widely used to form ordered SAMs on metal surfaces, such as gold. These monolayers are crucial for modifying surface properties like wettability and adhesion in microelectronic devices and sensor applications.

Surface Functionalization

This thiol serves as a versatile building block for functionalising surfaces in materials science. It enables precise control over surface chemistry, which is vital for nanotechnology and advanced materials development.

Micro/Nanoelectronics

In micro and nanoelectronics, 1-octanethiol facilitates the creation of patterned surfaces and interfaces. Its use contributes to the fabrication of advanced electronic components and devices requiring specific surface characteristics.

Chemical Synthesis

As an alkyl thiol, it can participate in various organic synthesis reactions, acting as a source of the octylthio group or undergoing reactions characteristic of thiols.

02 /Properties

Molecular weight	146.29
Linear formula	CH3(CH2)7SH
Assay	≥97%
Boiling point	197-200 °C(lit.)
Density	0.843 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.452(lit.)

03 /Identifiers & registry

CAS number

111-88-6

MDL number

MFCD00004912

Beilstein registry

1733101

04 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

05 /Frequently asked questions

What is 1-Octanethiol used for?

1-Octanethiol is primarily used for forming self-assembled monolayers (SAMs) on metal surfaces, surface functionalisation in materials science, and in micro/nanoelectronics applications.

What is the CAS number and molecular formula for 1-Octanethiol?

The CAS number for 1-Octanethiol is 111-88-6, and its molecular formula is CH3(CH2)7SH.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 1-Octanethiol with a purity of ≥97%. This is a technical/research grade chemical, and TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.

What are the safety considerations for handling 1-Octanethiol?

1-Octanethiol is a flammable liquid and vapour. It can cause skin irritation and serious eye irritation. It may also cause respiratory irritation. Handle in a well-ventilated area, away from heat and ignition sources, and wear appropriate personal protective equipment.

How is 1-Octanethiol packed and shipped?

1-Octanethiol is packed according to industry standards for chemical safety and stability. We export globally, adhering to all relevant shipping regulations for hazardous materials.