74731
1-Octadecanethiol
purum, ≥95.0% (GC)
Synonym(s):
Mercaptan C18, Octadecyl mercaptan, Stearyl mercaptan
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About This Item
Recommended Products
grade
purum
Quality Level
Assay
≥95.0% (GC)
form
solid
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 a water soluble sulfur compound with an 18 carbon alkyl chain, which forms a strong hydrophobic assembly with transition metals, like gold .It forms self-assembled monolayers (SAMs) on the surface of such transition metals. The thiol membrane when covalently bonded with the surface of the metal electrode, it shows electrostriction phenomenon leading to variation in capacitance.ODT SAMs have a hydrophobic surface with contact angle of 102oC.
Application
ODT is used to deposit thiolated molecules onto the surface of gold substrates, such as
- SAMs on gold quartz crystal resonators.
- on the tip of atomic force microscope probes.
- capacitive sensors.
Analysis Note
may contain precipitation in melt
Signal Word
Warning
Hazard Statements
Precautionary Statements
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
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Analytical Chemistry, 63(1), 55-60 (1991)
Journal of chromatography. A, 1110(1-2), 95-101 (2006-02-14)
Three types of thiol compounds (n-octadecanethiol, thiophenol, and 2-phenylethanethiol) were used to modify the gold-coated polystyrene particles (dp. 5microm) to prepare a stationary phase for capillary liquid chromatography through the formation of self-assembled monolayer. The column with n-octadecanethiol-modified gold-coated polystyrene
Langmuir : the ACS journal of surfaces and colloids, 21(9), 4058-4065 (2005-04-20)
To make ultrathin films for the fabrication of artificial olfactory systems, odorant biosensors, we have investigated mixed Langmuir and Langmuir-Blodgett films of odorant-binding protein/amphiphile. Under optimized experimental conditions (phosphate buffer solution, pH 7.5, OBP-1F concentration of 4 mg L(-1), target
Journal of chromatography. A, 1198-1199, 95-100 (2008-06-10)
Monodispersed spherical gold particles synthesized and modified with n-octadecanethiol (C18-Au) were packed into a 100 microm I.D. capillary column and tested in capillary high-performance liquid chromatography (microHPLC). To the best of our knowledge, this represents the first report on the
Colloids and surfaces. B, Biointerfaces, 81(1), 212-216 (2010-08-03)
Hybrid bilayer lipid membranes (HBMs) were built on roughened silver electrodes exhibiting surface-enhanced Raman scattering (SERS) activity. The HBM consisted of a first layer of octadecanethiol (ODT) directly bound to the electrode surface, on which a second layer of 1,2-diphytanoyl-sn-glycero-3-phosphocholine
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