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O1858

1-Octadecanethiol

98%

Synonym(s):

Mercaptan C18, Octadecyl mercaptan, Stearyl mercaptan

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Size/SKUAvailabilityPrice
25 mL

Available to ship TODAYfromMILWAUKEE

$48.30
100 mL

Available to ship TODAYfromMILWAUKEE

$130.00

About This Item

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

$48.30


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Quality Segment

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

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.

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This Item
74731D1602471364
description

98%

description

purum, ≥95.0% (GC)

description

96%

description

≥98%

bp

204-210 °C/11 mmHg (lit.)

bp

204-210 °C/11 mmHg (lit.)

bp

114 °C/13 mmHg (lit.)

bp

266-283 °C (lit.)

mp

30-33 °C (lit.)

mp

30-33 °C (lit.)

mp

−26 °C (lit.)

mp

-

assay

98%

assay

≥95.0% (GC)

assay

96%

assay

≥98%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

density

0.847 g/mL at 25 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

density

0.824 g/mL at 25 °C (lit.)

density

0.845 g/mL at 25 °C (lit.)


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pictograms

Exclamation markEnvironment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    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/418/501/product-dating-information-06-25-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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