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52270

Sigma-Aldrich

1-Hexadecanethiol

≥95.0% (GC)

Synonym(s):

Cetyl mercaptan, Hexadecyl mercaptan, Mercaptan C16

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About This Item

Linear Formula:
CH3(CH2)15SH
CAS Number:
2917-26-2
Molecular Weight:
258.51
Beilstein:
1748495
EC Number:
220-846-6
MDL number:
MFCD00011677
UNSPSC Code:
12352100
PubChem Substance ID:
57651351
NACRES:
NA.22

Assay

≥95.0% (GC)

refractive index

n20/D 1.462 (lit.)
n20/D 1.464

bp

184-191 °C/7 mmHg (lit.)

mp

18-20 °C (lit.)

transition temp

solidification point 15-18 °C(lit.)

density

0.84 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCS

InChI

1S/C16H34S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17/h17H,2-16H2,1H3

InChI key

ORTRWBYBJVGVQC-UHFFFAOYSA-N

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General description

1-Hexadecanethiol (HDT) readily forms self-assembled monolayer (SAMs) on gold surfaces. Phase separation characteristics of binary SAMs [made up of HDT and 3-mercaptopropionic acid] on the surface of Au(111) have been investigated. Interaction between gold surface and SAM of HDT has been investigated by atomic force microscopy (AFM).

Application

1-Hexadecanethiol has been used in the preparation of cholesterol-PIE12-trimer and alkyl-PIE12-trimer (PIE12-trimer = protease-resistant trimeric D-peptide inhibitor). It may be used for the functionalization of silver nanowires.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

215.6 °F - closed cup

Flash Point(C)

102 °C - closed cup

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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Lower hole-injection barrier between pentacene and a 1-hexadecanethiol-modified gold substrate with a lowered work function.
Hong K, et al.
Organic Electronics, 9(1), 21-29 (2008)
Jialin Wang et al.
Langmuir : the ACS journal of surfaces and colloids, 24(15), 7889-7896 (2008-06-26)
An atomic force microscope (AFM) was used to measure the forces between gold surfaces with and without hydrophobizing them by the self-assembly of 1-hexadecanethiol. The forces measured between bare gold surfaces were fitted to the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory with a
Dana M Rosu et al.
Langmuir : the ACS journal of surfaces and colloids, 25(2), 919-923 (2008-12-25)
Infrared spectroscopic ellipsometry was used for determination of molecular orientation and for lateral homogeneity studies of organic monolayers on GaAs and Au, the organic layer being either octanedithiol or hexadecanethiol (HDT). The laterally resolved measurements were performed with the infrared
X Torrelles et al.
Langmuir : the ACS journal of surfaces and colloids, 20(21), 9396-9402 (2004-10-06)
The c(4 x 2) structure of C16H33SH alkanethiol monolayers self-assembled on Au(111) has been studied by grazing incidence X-ray diffraction. This structure coexists on the surface with the (radical3x radical3)R30 degrees phase. The structural refinement of the c(4 x 2)
Langmuir-Blodgett silver nanowire monolayers for molecular sensing using surface-enhanced Raman spectroscopy.
Tao A, et al.
Nano Letters, 3(9), 1229-1233 (2003)
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