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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/REAXYS Number:
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

signalword

Warning

hcodes

H315,H400

Hazard Classifications

Aquatic Acute 1 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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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)
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)
Fabrication of super-hydrophobic nano-sized copper films by electroless plating.
Liu X, et al.
Thin Solid Films, 518(14), 3731-3734 (2010)
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)
S Neupane et al.
Langmuir : the ACS journal of surfaces and colloids, 34(1), 66-72 (2017-12-10)
Controlling the molecular organization of organic self-assembled monolayers (SAM) is of utmost importance in nanotechnology, molecular electronics, and surface science. Here we propose two well-differentiated approaches, double printing based on microcontact printing (μ-cp) and molecular backfilling adsorption, to produce complex
View All Related Papers

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Photopatterning Self-Assembled Monolayers

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

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