234192

1-Hexanethiol

95%

• Synonym(s): 1-Mercaptohexane, Hexyl mercaptan, MCH, Mercaptan C₆
• Linear Formula: CH₃(CH₂)₅SH
• CAS Number: 111-31-9
• Molecular Weight: 118.24
• Beilstein/REAXYS Number: 1731295
• EC Number: 203-857-0
• MDL number: MFCD00004909
• UNSPSC Code: 12352103
• PubChem Substance ID: 24854028
• NACRES: NA.23

Properties

• assay: 95%
• form: liquid
• refractive index: n20/D 1.450
• bp: 150-154 °C (lit.)
• mp: −81-−80 °C (lit.)
• density: 0.832 g/mL at 25 °C
• SMILES string: CCCCCCS
• InChI: 1S/C6H14S/c1-2-3-4-5-6-7/h7H,2-6H2,1H3
• InChI key: PMBXCGGQNSVESQ-UHFFFAOYSA-N

Description

General description

1-Hexanethiol is an organothiol that forms a self-assembled monolayer (SAM) on a variety of nanoparticles. It consists of S head group, CH₂ alkane chain, and CH₃ terminal group.

Application

1-Hexanethiol can be mixed with 4-mercaptophenol to functionalize gold nanoparticles (AuNPs) for use as chemi-resistive sensors. It can also form a protective coating against oxidative reactions and contaminating layers on copper surfaces. It can also be used as a thiol based ligand which finds potential application as a semiconducting material in thin film solar cells.
It is used to tune the electrical characteristics in networked carbon nanotube field-effect transistors. It is also used as a monolayer on copper surfaces to retard surface oxidation during exposure to the environment which can then be desorbed effectively with an annealing step in inert N₂ to provide a clean Cu surface.

Safety Information

• pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H226,H302
• pcodes: P210 - P233 - P240 - P241 - P242 - P301 + P312
• Hazard Classifications: Acute Tox. 4 Oral - Flam. Liq. 3
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 86.0 °F - closed cup
• flash_point_c: 30 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter