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1-Dodecanethiol

CAS No.
112-55-0
Chemical Name:
1-Dodecanethiol
Synonyms
NDM;Dodecane-1-thiol;DODECYL MERCAPTAN;Dodecylthiol;LAURYL MERCAPTAN;1-Dodecyl mercaptan;Normal Dodecyl Mercaptan;N-DODECANETHIOL;N-DODECYL MERCAPTAN;n-Dodecylthiol
CBNumber:
CB9363948
Molecular Formula:
C12H26S
Molecular Weight:
202.4
MDL Number:
MFCD00004885
MOL File:
112-55-0.mol
MSDS File:
SDS
Last updated:2023-12-24 21:24:35

1-Dodecanethiol Properties

Melting point -7 °C
Boiling point 266-283 °C(lit.)
Density 0.845 g/mL at 25 °C(lit.)
vapor density 7 (vs air)
vapor pressure 0.002 hPa (20 °C)
FEMA 4581 | DODECANETHIOL
refractive index n20/D 1.459(lit.)
Flash point >230 °F
storage temp. Store below +30°C.
solubility Chloroform (Sparingly), Methanol (Slightly)
pka 10.49±0.10(Predicted)
form Liquid
color Clear
Odor Stench
Odor Type sulfurous
Water Solubility IMMISCIBLE
Sensitive Air Sensitive
λmax 205nm(lit.)
JECFA Number 1924
BRN 969337
Exposure limits ACGIH: TWA 0.1 ppm
NIOSH: Ceiling 0.5 ppm(4.1 mg/m3)
Stability Air Sensitive
InChIKey WNAHIZMDSQCWRP-UHFFFAOYSA-N
LogP 6.18
Indirect Additives used in Food Contact Substances N-DODECYLMERCAPTAN
Substances Added to Food (formerly EAFUS) N-DODECYLMERCAPTAN
CAS DataBase Reference 112-55-0(CAS DataBase Reference)
EWG's Food Scores 4
FDA UNII S8ZJB6X253
NIST Chemistry Reference 1-Dodecanethiol(112-55-0)
EPA Substance Registry System Dodecyl mercaptan (112-55-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS05,GHS07,GHS09
Signal word  Danger
Hazard statements  H314-H317-H410
Precautionary statements  P261-P272-P273-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  Xn,Xi,N,F,C
Risk Statements  37/38-41-42/43-36/37/38-67-65-62-51/53-48/20-38-11-50/53-34
Safety Statements  23-26-36/37/39-45-37/39-63-62-61-36/37-33-29-16-9-60
RIDADR  UN 1208 3/PG 2
WGK Germany  3
RTECS  JR3155000
Autoignition Temperature 230 °C
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29309070
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
NFPA 704
1
2 0

1-Dodecanethiol price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.20544 1-Dodecanethiol for synthesis 112-55-0 250ML $60.4 2024-03-01 Buy
Sigma-Aldrich 8.20544 1-Dodecanethiol for synthesis 112-55-0 1L $100 2024-03-01 Buy
Sigma-Aldrich 8.20544 1-Dodecanethiol for synthesis 112-55-0 3kg $172 2024-03-01 Buy
Sigma-Aldrich 8.20544 1-Dodecanethiol for synthesis 112-55-0 10L $460 2024-03-01 Buy
Sigma-Aldrich 471364 1-Dodecanethiol ≥98% 112-55-0 2l $117 2024-03-01 Buy
Product number Packaging Price Buy
8.20544 250ML $60.4 Buy
8.20544 1L $100 Buy
8.20544 3kg $172 Buy
8.20544 10L $460 Buy
471364 2l $117 Buy

1-Dodecanethiol Chemical Properties,Uses,Production

Chemical Properties

1-Dodecanethiol is a colourless liquid organic compound, with a characteristic odour. Soluble in methanol, ether, acetone, benzene, ethyl acetate, insoluble in water.

Uses

Dodecyl mercaptan is a poymerization inhibitor added to polyurethane resins and Neoprene glues for use, e.g., in the shoe industry.

Uses

1-Dodecanethiol is used in the preparation of hydrophobic or mixed self-assembled monolayers. It is also employed as a chain transfer agent for radical polymerization. Further, it is utilized as a polymerization inhibitor in polyurethane and neoprene adhesives, which finds application in the footwear industry. In addition to this, it acts as a protein regenerating agent used for the regeneration of native proteins from mercuribenzoate.

Uses

1-Dodecanethiol can be used for the synthesis of thiol-stabilized metal nanoparticles (NPs), such as gold nanoparticles and silver nanoparticles, which have been produced for use as catalysts, electronic devices, fillers, sensors and active components in composite materials, and other applications.
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.

Preparation

Preparation of 1-dodecanethiol: 1-Bromododecane, thiourea and 95% ethanol are heated to reflux reaction, then sodium hydroxide solution is added and heated. After the reaction is finished, cooled and left to stratify, the oil layer is the crude thiol. The crude product is washed with water, dried, distilled, and distilled under reduced pressure, which is 1-dodecanethiol.

General Description

Oily colorless liquid with a mild skunk odor. Freezing point 19°F.

Air & Water Reactions

Air and moisture sensitive. Insoluble in water. Reacts vigorously with water or steam.

Reactivity Profile

1-Dodecanethiol is incompatible with bases, oxidizing agents, reducing agents and alkali metals. Easily oxidized to disulfide.

Health Hazard

1-Dodecanethiol is irritating to skin, eyes, and mucous membranes. Ingestion may cause nausea. Repeated skin exposure can cause dermatitis and may produce a sensitizing effect. It is very toxic to aquatic life with long lasting effects.

Fire Hazard

Special Hazards of Combustion Products: Poisonous and irritating gases (e.g., sulfur dioxide) are generated in fires.

Purification Methods

Dry it with CaO for several days, then distil it from CaO. [Beilstein 1 IV 1851.]

112-52-7
112-55-0
Synthesis of 1-Dodecanethiol from 1-Chlorododecane
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  • Feb 26,2020

View Lastest Price from 1-Dodecanethiol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Dodecanethiol pictures 2023-12-24 1-Dodecanethiol
112-55-0
US $100.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
1-Dodecanethiol pictures 2023-08-26 1-Dodecanethiol
112-55-0
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
Dodecanethiol pictures 2023-03-06 Dodecanethiol
112-55-0
US $1.00 / KG 1KG 99.% 50 ton Hebei Guanlang Biotechnology Co,.LTD
  • 1-Dodecanethiol pictures
  • 1-Dodecanethiol
    112-55-0
  • US $100.00-1.00 / KG
  • 99%
  • Henan Fengda Chemical Co., Ltd
  • Dodecanethiol pictures
  • Dodecanethiol
    112-55-0
  • US $1.00 / KG
  • 99.%
  • Hebei Guanlang Biotechnology Co,.LTD
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