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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
Pricing and availability is not currently available.

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.[1][2]

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.[3] It may also be used enhance the superhydrophobic properties for different materials like nano-sized copper films,[4] graphene and silica for different applications like mercury detection and electrochemical analysis.[5][1]

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

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Certificates of Analysis (COA)

Lot/Batch Number
WXBD9457V
WXBD7803V
WXBD6753V
WXBD5865V
WXBD3624V

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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)
Khalid S Salaita et al.
Nano letters, 6(11), 2493-2498 (2006-11-09)
Experiments that utilize structures generated by dip-pen nanolithography (DPN) as positive resists for fabricating nanohole arrays and lithographic masters are described. The technique takes advantage of the difference in desorption potentials for patterned structures made from 16-mercaptohexadecanoic acid (MHA) and
View All Related Papers

Articles

Photopatterning Self-Assembled Monolayers

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

Photopatterning Self-Assembled Monolayers

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

Photopatterning Self-Assembled Monolayers

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

Photopatterning Self-Assembled Monolayers

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

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    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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