Octadecanethiol
- CAS No.
- 2885-00-9
- Chemical Name:
- Octadecanethiol
- Synonyms
- Mercaptan;1-OCTADECANETHIOL;ODM;OCTADECYL MERCAPTAN;octadecane-1-thiol;MERCAPTAN C18;Octadecanthiol;octadecylthiol;OCTADECANETHIOL;OCLadecanethiol
- CBNumber:
- CB3677676
- Molecular Formula:
- C18H38S
- Molecular Weight:
- 286.56
- MOL File:
- 2885-00-9.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/29 15:17:36
| Melting point | 30-33 °C(lit.) |
|---|---|
| Boiling point | 204-210 °C11 mm Hg(lit.) |
| Density | 0.847 g/mL at 25 °C(lit.) |
| vapor pressure | <0.5 hPa (20 °C) |
| refractive index |
n |
| Flash point | 55 °F |
| storage temp. | Store below +30°C. |
| pka | 10.49±0.10(Predicted) |
| form | Crystalline Solid |
| Specific Gravity | 0.832 (30℃)0.847 |
| color | White |
| Water Solubility | Insoluble |
| BRN | 1811934 |
| Exposure limits | NIOSH: Ceiling 0.5 ppm(5.9 mg/m3) |
| Stability | Stability Combustible. Stable. Incompatible with strong oxidizing agents, bases, reducing agents, alkali metals. |
| InChIKey | QJAOYSPHSNGHNC-UHFFFAOYSA-N |
| LogP | 8 at 20℃ |
| CAS DataBase Reference | 2885-00-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Octadecanethiol(2885-00-9) |
| EPA Substance Registry System | 1-Octadecanethiol (2885-00-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H400 | |||||||||
| Precautionary statements | P264-P273-P280-P302+P352-P332+P313-P362+P364 | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 7-16-37/39-26-36 | |||||||||
| RIDADR | UN 1170 3/PG 2 | |||||||||
| OEL | Ceiling: 0.5 ppm (5.9 mg/m3) [15-minute] | |||||||||
| WGK Germany | 3 | |||||||||
| Autoignition Temperature | >200 °C | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29309070 | |||||||||
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 2000 mg/kg | |||||||||
| NFPA 704 |
|
Octadecanethiol price More Price(14)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 8.14444 | 1-Octadecanethiol for synthesis | 2885-00-9 | 10G | ₹2040 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | O1858 | 1-Octadecanethiol 98% | 2885-00-9 | 25ML | ₹2976.88 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.14444 | 1-Octadecanethiol for synthesis | 2885-00-9 | 50G | ₹2990 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | O1858 | 1-Octadecanethiol 98% | 2885-00-9 | 100ML | ₹5661.48 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.14444 | 1-Octadecanethiol for synthesis | 2885-00-9 | 250G | ₹11139.99 | 2022-06-14 | Buy |
Octadecanethiol Chemical Properties,Uses,Production
Chemical Properties
white powder with an extremely unpleasant smell
Uses
1-Octadecanethiol (ODT) is used to deposit thiolated molecules onto the surface of gold substrates, such as SAMs on gold quartz crystal resonators, on the tip of atomic force microscope probes, capacitive sensors.
General Description
1-Octadecanethiol (ODT) is a water soluble sulfur compound with an 18 carbon alkyl chain, which forms a strong hydrophobic assembly with transition metals, like gold .It forms self-assembled monolayers (SAMs) on the surface of such transition metals. The thiol membrane when covalently bonded with the surface of the metal electrode, it shows electrostriction phenomenon leading to variation in capacitance.ODT SAMs have a hydrophobic surface with contact angle of 102oC.
Reactivity Profile
Octadecanethiol is non-flammable but combustible (Flash point >100°F and <140°F). Incompatible with oxidizing agents, strong acids and strong bases, alkali metals, and nitric acid. Can react with water, steam or acids to produce toxic and flammable vapors. Reacts violently with powerful oxidizing agents such as calcium hypochlorite(Ca(OCl)2) to generate SOx. Reacts with hydrides to form flammable H2 gas; reacts with halogenated hydrocarbons to yield HX. Reacts exothermically with aldehydes. Emits toxic compounds of sulfur when when heated to decomposition.
Hazard
Strong irritant.
Octadecanethiol Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| LEAPCHEM CO., LTD. | +86-852-30606658 | China | 43348 | 58 | Inquiry |
| Hebei Longbang Technology Co., LTD | +86-18032476855 +86-18032476855 | China | 950 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | China | 12459 | 58 | Inquiry |
| Wuhan Fortuna Chemical Co., Ltd | +86-027-59207850 | China | 5992 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| CLEARSYNTH LABS LTD. | 58 |
| A.J Chemicals | 58 |
| CHEMSWORTH | 30 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| LEAPCHEM CO., LTD. | 58 |
| Hebei Longbang Technology Co., LTD | 58 |
| Hebei Mojin Biotechnology Co., Ltd | 58 |
| Wuhan Fortuna Chemical Co., Ltd | 58 |
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