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O1858

Sigma-Aldrich

1-Octadecanethiol

98%

Synonym(s):

Mercaptan C18, Octadecyl mercaptan, Stearyl mercaptan

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About This Item

Linear Formula:
CH3(CH2)17SH
CAS Number:
2885-00-9
Molecular Weight:
286.56
Beilstein:
1811934
EC Number:
220-744-1
MDL number:
MFCD00004886
UNSPSC Code:
12352103
PubChem Substance ID:
24897952
NACRES:
NA.23

Quality Level

200

Assay

98%

bp

204-210 °C/11 mmHg (lit.)

mp

30-33 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCCCS

InChI

1S/C18H38S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3

InChI key

QJAOYSPHSNGHNC-UHFFFAOYSA-N

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General description

1-Octadecanethiol (ODT) is an alkanethiol with a long carbon chain mainly used as a self-assembled monolayer (SAM) for surface modification of a wide range of materials. It facilitates superhydrophobicity with high wettability and low surface energy.

Application

ODT is used in the surface modification of gold nanoparticle (AuNPs)/Nickel (Ni) foam conjugate for the preparation of a 3D surface enhanced Raman spectroscopy(SERS) substrate for the detection of organic pollutants. It may also be used enhance the superhydrophobic properties for different materials like nano-sized copper films, graphene and silica for different applications like mercury detection and electrochemical analysis.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H315,H400

Hazard Classifications

Aquatic Acute 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Electrochemical investigation of dynamic interfacial processes at 1-octadecanethiol-modified copper electrodes in halide-containing solutions.
Ma HY, et al.
Electrochimica Acta, 48(28), 4277-4289 (2003)
David Wakerley et al.
Nature materials, 18(11), 1222-1227 (2019-08-07)
The aqueous electrocatalytic reduction of CO2 into alcohol and hydrocarbon fuels presents a sustainable route towards energy-rich chemical feedstocks. Cu is the only material able to catalyse the substantial formation of multicarbon products (C2/C3), but competing proton reduction to hydrogen
Adhesion and friction studies of microsphere-patterned surfaces in contact with atomic force microscopy colloidal probe.
Zhang X, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 401(28), 90-96 (2012)
Fabrication of super-hydrophobic nano-sized copper films by electroless plating.
Liu X, et al.
Thin Solid Films, 518(14), 3731-3734 (2010)
Three-dimensional superhydrophobic surface-enhanced Raman spectroscopy substrate for sensitive detection of pollutants in real environments.
Zhao H, et al.
Journal of Material Chemistry A, 3(8), 4330-4337 (2015)
View All Related Papers

Articles

Micro and Nanometer Scale Photopatterning of Self-Assembled Monolayers

Self-assembled monolayers (SAMs) have attracted enormous interest for a wide variety of applications in micro- and nano-technology. In this article, we compare the benefits of three different classes of SAM systems (alkylthiolates on gold).

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