471364
1-Dodecanethiol
≥98%
Synonym(s):
n-Dodecyl mercaptan, Dodecyl mercaptan, Lauryl mercaptan, Mercaptan C12, NDM
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About This Item
Linear Formula:
CH3(CH2)11SH
CAS Number:
Molecular Weight:
202.40
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
EC Number:
203-984-1
Beilstein/REAXYS Number:
969337
MDL number:
vapor density
7 (vs air)
Quality Level
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
1-Dodecanethiol (DDT) is a premier alkanethiol for depositing highly ordered, hydrophobic Self-Assembled Monolayers (SAMs) on gold and noble metals. This ≥98% purity grade ensures crystalline-like molecular packing with minimal surface defects, critical for single-molecule electronics. As the gold standard for nanoparticle stabilization, its C12 chain offers the optimal balance between dense van der Waals packing and liquid-phase solubility, providing superior ease of handling compared to longer-chain analogs.
Application
As a versatile molecular bridge, DDT is essential for engineering intelligent interfaces and stimuli-responsive systems that enable precise interactions at the intersection of nanotechnology, biology, and electronics.
• 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.
• 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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Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1C - Skin Sens. 1A
Storage Class
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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Related Content
Pham Hong Phong et al.
Langmuir : the ACS journal of surfaces and colloids, 21(23), 10581-10586 (2005-11-03)
Ternary self-assembled monolayers (SAM) composed of 2-aminoethanethiol (AET), 2-mercaptoethanesulfonic acid (MES), and 1-dodecanethiol (DDeT) form two types of domains as if it were a two-component SAM: DDeT-rich hydrophobic domains and electrostatically stabilized hydrophilic domains composed of MES and AET on
Functions of 1-Dodecanethiol in the Synthesis and Post-treatment of Copper Sulfide Nanoparticles Relevant to Their Photocatalytic Applications.
Lihui C and Guohua L
ACS Applied Nano Materials, 1(9), 4587?4593-4587?4593 (2018)
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Soft matter, 15(32), 6571-6580 (2019-08-01)
The comprehension and control of the interactions between nanoparticles and proteins at a molecular level are crucial to improve biomedical applications of nanomaterials and to develop nanosystems able to influence and regulate the conformational changes in proteins. In this work