1-Octadecanethiol
1-Octadecanethiol (CAS: 2885-00-9), with the chemical formula CH3(CH2)17SH and a molecular weight of 286.56 g/mol, is a long-chain alkyl thiol. This compound is recognised for its thiol functional group, making it a valuable intermediate in various chemical synthesis pathways. It serves as a building block in organic chemistry and is particularly useful in applications requiring sulfur-containing organic molecules.
- IUPAC
- Mercaptan C18,Octadecyl mercaptan,Stearyl mercaptan
- Synonyms
- Mercaptan C18Octadecyl mercaptanStearyl mercaptan
Organic Synthesis Intermediate
1-Octadecanethiol serves as a crucial building block in organic synthesis. Its thiol group can participate in various reactions, including nucleophilic substitution and addition, enabling the creation of more complex sulfur-containing organic molecules.
Surface Modification
The long alkyl chain and terminal thiol group of 1-octadecanethiol make it suitable for self-assembled monolayer (SAM) formation on metal surfaces, particularly gold. This application is relevant in nanotechnology and surface science for altering surface properties.
Material Science
This thiol can be incorporated into polymer structures or used to modify materials, imparting specific properties related to its hydrophobic alkyl chain and reactive sulfur atom. It's an important component in the development of novel materials.
| Molecular weight | 286.56 |
|---|---|
| Linear formula | CH3(CH2)17SH |
| Assay | ≥95.0% (GC) |
| Boiling point | 204-210 °C/11 mmHg(lit.) |
| Density | 0.847 g/mL at 25 °C(lit.) |
| Melting point | 30-33 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 185 °C / 365 °F |
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-Octadecanethiol primarily used for?
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1-Octadecanethiol is primarily used as a building block in organic synthesis and for surface modification applications, especially in the formation of self-assembled monolayers on metal surfaces.
What are the CAS number and chemical formula for 1-Octadecanethiol?
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The CAS number for 1-Octadecanethiol is 2885-00-9, and its linear chemical formula is CH3(CH2)17SH.
What grade and purity does Tech Serve Solutions supply for 1-Octadecanethiol?
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Tech Serve Solutions supplies 1-Octadecanethiol with an assay of ≥95.0% (GC). This product is not classified as USP, BP, or EP grade.
How should 1-Octadecanethiol be handled safely?
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1-Octadecanethiol is classified as a Warning, with hazards including skin irritation (H315), eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, such as a dust mask (N95 US), eyeshields, and gloves, should be worn. Ensure adequate ventilation and avoid breathing dust/vapours. In case of contact, rinse thoroughly with water.
How is 1-Octadecanethiol packed, shipped, and exported?
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1-Octadecanethiol is carefully packed to ensure safe transit. Tech Serve Solutions, established in 1998, is an experienced global supplier and exporter of fine chemicals, adhering to international shipping regulations.
How can I request a sample or quote for 1-Octadecanethiol?
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To request a sample or a quote for 1-Octadecanethiol, please contact our sales team directly through the website or by phone. Our experts will assist you promptly.
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