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Merck
CN

234192

1-Hexanethiol

95%

Synonym(s):

1-Mercaptohexane, Hexyl mercaptan, MCH, Mercaptan C6

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About This Item

Linear Formula:
CH3(CH2)5SH
CAS Number:
111-31-9
Molecular Weight:
118.24
Beilstein:
1731295
EC Number:
203-857-0
MDL number:
MFCD00004909
UNSPSC Code:
12352103
PubChem Substance ID:
24854028
NACRES:
NA.23

Key Documents

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Quality Level

100

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

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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.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H302

Hazard Classifications

Acute Tox. 4 Oral - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

86.0 °F - closed cup

Flash Point(C)

30 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
0000104549
STBJ1680
STBG3802V
STBC5623V
S76993

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Noble metal surface degradation induced by organothiols
de Poel W, et al.
Surface Science, 662, 59-66 (2017)
Lee, C. W.; Chen, Y.; et al.
Applied Physics Letters, 91, 103515-103515 (2007)
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Articles

Photopatterning Self-Assembled Monolayers

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

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