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471836

Sigma-Aldrich

1-Octanethiol

≥98.5%

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Synonym(s):
n-Octyl mercaptan, Mercaptan C8, Octyl mercaptan
Linear Formula:
CH3(CH2)7SH
CAS Number:
111-88-6
Molecular Weight:
146.29
Beilstein:
1733101
EC Number:
203-918-1
MDL number:
MFCD00004912
UNSPSC Code:
12352103
PubChem Substance ID:
24870763
NACRES:
NA.23

Quality Level

200

Assay

≥98.5%

refractive index

n20/D 1.452 (lit.)

bp

197-200 °C (lit.)

density

0.843 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCS

InChI

1S/C8H18S/c1-2-3-4-5-6-7-8-9/h9H,2-8H2,1H3

InChI key

KZCOBXFFBQJQHH-UHFFFAOYSA-N

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General description

1-Octanethiol (OT) is C8 alkanethiol that forms self-assembled monolayer (SAM) on a variety of nanoparticles. It has a low flash point and low vapor pressure.

Application

OT can be used as a sulfur precursor for the preparation of shell for CdSe/CdS quantum dots. It forms ligands that help in enhancing the power efficiency of hetero-junction nanorod sensitized solar cells as it enhances the electron extraction from the nanorod and TiO2 interface. OT based stabilized coating on copper nanoparticles (CuNPs) may be used in the dispersion of these colloidal particles in different sample solutions. It can be used to improve charge injection by creating a monolayer on gold source-drain electrode surfaces for bottom-contact thin-film transistors (TFTs).

Legal Information

Product of Arkema Inc.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H317,H335,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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Adsorption structures of 1-octanethiol on Cu (111) studied by scanning tunneling microscopy.
Driver SM and Woodruff DP
Langmuir, 16(16), 6693-6700 (2000)
Takane Imaoka et al.
Nature communications, 8(1), 688-688 (2017-09-28)
Subnanometer noble metal clusters have enormous potential, mainly for catalytic applications. Because a difference of only one atom may cause significant changes in their reactivity, a preparation method with atomic-level precision is essential. Although such a precision with enough scalability
David Doblas et al.
Nano letters, 19(8), 5246-5252 (2019-06-30)
We studied the concentration-dependent agglomeration of apolar nanoparticles in different solvents. Octanethiol-stabilized gold nanoparticles (AuNPs) in evaporating liquid droplets were observed in situ using small-angle X-ray scattering. Concurrent analysis of liquid volume and particle agglomeration provided time-dependent absolute concentrations of
Influence of alkanethiols on fluorescence blinking of InP@ ZnS colloidal quantum dots.
Gak VY, et al.
High Energy Chemistry, 51(2), 118-121 (2017)
Sheng Wang et al.
Nanoscale research letters, 12(1), 380-380 (2017-06-07)
We report a phosphine-free one-pot method to synthesize ZnSe/CdS/ZnS core-shell quantum dots (QDs) with composite type-II/type-I structures and consequent reabsorption suppression properties. The as-synthesized QDs possess high efficient red emission (with quantum yield of 82%) and high optical stability. Compared
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Photopatterning Self-Assembled Monolayers

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