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
471364
1-Dodecanethiol
≥98%
Sinónimos:
n-Dodecyl mercaptan, Dodecyl mercaptan, Lauryl mercaptan, Mercaptan C12, NDM
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Acerca de este artículo
vapor density
7 (vs air)
Quality Segment
assay
≥98%
refractive index
n20/D 1.459 (lit.)
bp
266-283 °C (lit.)
density
0.845 g/mL at 25 °C (lit.)
SMILES string
CCCCCCCCCCCCS
InChI
1S/C12H26S/c1-2-3-4-5-6-7-8-9-10-11-12-13/h13H,2-12H2,1H3
InChI key
WNAHIZMDSQCWRP-UHFFFAOYSA-N
General description
Application
• Nanoparticle Capping: Provides a robust hydrophobic shell for Gold, CdS, and PbS nanocrystals, preventing aggregation and enabling solvent-phase processing.
• Steric Spacing: Acts as a critical "diluent" in mixed SAMs to precisely tune the lateral density of bulky bioreceptors (DNA/proteins), optimizing binding kinetics in biosensors.
• Molecular Electronics: Serves as a foundational dielectric spacer in molecular junctions to study electron tunneling across individual organic molecules.
• Quantum Dot Synthesis: Functions as a stable sulfur source for the solvothermal growth of magic-sized nanocrystals used in bio-imaging and optoelectronics.
• Interface Protection: Forms a non-conductive, anti-corrosive barrier on copper and germanium surfaces for futuristic microelectronics and medical implants.
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1C - Skin Sens. 1A
Clase de almacenamiento
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
262.4 °F - closed cup
flash_point_c
128 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How do you coat copper foil with a single layer of 1-Dodecanethiol molecules on one surface only. Shielding the other surface with a tape does not work, because removing the tape can bend the foil and damage the coating.
1 answer-
Following surface preparation and oxidation removal, a solution of 1-Dodecanethiol in a suitable solvent, such as toluene or ethanol, should be prepared at a concentration typically between 1 and 10 mM. To achieve selective coating on one surface, a physical mask (e.g., tape or a polymer film) can be used to cover the areas of the copper foil that are not to be coated before immersing it in the 1-Dodecanethiol solution. Alternatively, a drop casting method can be used, whereby a drop of the 1-Dodecanethiol solution would be applied directly onto the desired surface and it would be allowed to spread out evenly. This method requires careful control to avoid spreading to the other side. The copper foil should then be immersed in the solution for a specified time (typically several hours) to allow the 1-Dodecanethiol molecules to self-assemble onto the exposed surface. After the desired time, the copper foil should be removed and rinsed gently with the same solvent used for the solution to remove any unbound thiol molecules.
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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