1-Dodecanethiol , 99.5% , 112-55-0
Synonym(s):
1-Dodecanethiol;NDM;Dodecyl mercaptan;Lauryl mercaptan;Lauryl mercaptan, Dodecyl mercaptan
CAS NO.：112-55-0
Empirical Formula: C12H26S
Molecular Weight: 202.4
MDL number: MFCD00004885
EINECS: 203-984-1
PRODUCT 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) |
| refractive index | n |
| FEMA | 4581 | DODECANETHIOL |
| 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 |
| CAS DataBase Reference | 112-55-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Dodecanethiol(112-55-0) |
| EPA Substance Registry System | Dodecyl mercaptan (112-55-0) |
Description and Uses
1-Dodecanethiol is a kind of oily colorless liquid with a mild skunk odor. It is used in the preparation of hydrophobic or mixed self-assembled monolayers.
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.
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.
Safety
| Symbol(GHS) |    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 |
| OEL | Ceiling: 0.5 ppm (4.1 mg/m3) [15-minute] |
| RIDADR | UN 1208 3/PG 2 |
| WGK Germany | 3 |
| RTECS | JR3155000 |
| Autoignition Temperature | 230 °C |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29309070 |
| Hazardous Substances Data | 112-55-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
