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471836

Sigma-Aldrich

1-Octanethiol

≥98.5%

Synonym(s):

n-Octyl mercaptan, Mercaptan C8, Octyl mercaptan

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About This Item

Linear Formula:
CH3(CH2)7SH
CAS Number:
Molecular Weight:
146.29
Beilstein:
1733101
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

154.4 °F - closed cup

Flash Point(C)

68 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
Jean-François Lemineur et al.
Langmuir : the ACS journal of surfaces and colloids, 32(46), 12056-12066 (2016-10-28)
A method is described for the in situ growth of substrate-supported organized gold nanoparticles. Upon exposure to an aqueous solution of a gold salt and a mild reducing agent, the particle size can be significantly increased without any loss of
Adsorption structures of 1-octanethiol on Cu (111) studied by scanning tunneling microscopy.
Driver SM and Woodruff DP
Langmuir, 16(16), 6693-6700 (2000)
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
Qin Jia Cai et al.
Langmuir : the ACS journal of surfaces and colloids, 24(20), 11889-11894 (2008-09-09)
A series of alkanethiol monolayers (CH 3(CH 2) n-1 SH, n = 4, 6, 8, 10, 12, 14, 16) were used to modify gold source-drain electrode surfaces for bottom-contact poly(3,3'''-didodecylquaterthiophene) (PQT-12) thin-film transistors (TFTs). The device mobilities of TFTs were

Articles

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

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