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Safety Information

471364

Sigma-Aldrich

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:
112-55-0
Molecular Weight:
202.40
Beilstein:
969337
EC Number:
203-984-1
MDL number:
MFCD00004885
UNSPSC Code:
12352103
PubChem Substance ID:
24870727
NACRES:
NA.23

vapor density

7 (vs air)

Quality Level

200

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

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General description

1-Dodecanethiol (DDT) is an alkyl thiol that forms a self-assembled monolayer (SAM) and can be used as an organic source of sulfur with balanced physio-chemical properties.

Application

DDT can be used as a source of sulfur for the synthesis CdS quantum dots (QDs) and lead sulfide nanoparticles (PbS) which find potential applications in energy efficient lighting, solar cells and as ammonium gas sensing agents. It may be used to form a self-assembled monolayer (SAM) on copper surface as a corrosion resistant coating. Functionalization with DDT may form SAMs on geranium (Ge) to improve the surface characteristics for futuristic applications in microelectronics.
This molecule is used for the production of hydrophobic SAMs. It can also be used in mixed SAMs to give a hydrophobic background and act as a spacer to move other functional groups or domains farther apart.

Signal Word

Danger

Hazard Statements

H314,H317,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1C - Skin Sens. 1A

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

262.4 °F - closed cup

Flash Point(C)

128 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

471364-BULK:
471364-1L:
471364-VAR:
471364-500ML:
471364-25ML:
471364-100ML:
471364-2L:
471364-18L:
471364-5L:

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Certificates of Analysis (COA)

Lot/Batch Number
STBL3902
SDBB1074
S8550844
STBL4537
SDBB0443

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Synthesis, characterization and application of lead sulfide nanostructures as ammonia gas sensing agent.
Hassan K, et al.
International Journal of Electrochemical Science, 8(10), 11661-11679 (2013)
Synthesis and characterization of PbS nanoparticles in an ionic liquid using single and dual source precursors.
Tshemese Z, et al.
Materials Science and Engineering, B, 227(7), 116-121 (2018)
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)
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
1-Dodecanethiol based highly stable self-assembled monolayers for germanium passivation.
Cai Qi, et al.
Applied Surface Science, 353(10), 890-901 (2015)
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