1,6-Hexanedithiol
1,6-Hexanedithiol (CAS: 1191-43-1) is an organosulfur compound with the linear formula HS(CH2)6SH and a molecular weight of 150.31 g/mol. This dithiol serves as a versatile building block in chemical synthesis and materials science. Its reactive thiol groups enable participation in various chemical reactions, making it valuable for applications requiring sulfur-containing structures, including self-assembly and surface modification.
- IUPAC
- 1,6-Dimercaptohexane,DMH,Hexamethylene dimercaptan
- Synonyms
- HS(CH2)6SH1,6-DimercaptohexaneDMHHexamethylene dimercaptan

Chemical Synthesis Intermediate
1,6-Hexanedithiol acts as a key building block in organic synthesis, facilitating the creation of complex molecules and polymers. Its two thiol functionalities allow for diverse reaction pathways, including nucleophilic substitutions and addition reactions.
Materials Science
This compound is employed in materials science for developing novel materials with specific properties. Its ability to form self-assembled monolayers (SAMs) is utilised in surface functionalisation and the creation of advanced electronic components.
Micro/Nanoelectronics
In micro- and nanoelectronics, 1,6-Hexanedithiol is used for surface modification and fabricating structures at the nanoscale. It plays a role in techniques such as self-assembly and contact printing for creating functional electronic devices.
Polymer Chemistry
The dithiol structure of 1,6-Hexanedithiol makes it suitable as a crosslinking agent or monomer in polymerisation processes. It can be incorporated into polymer chains to impart unique chemical or physical characteristics.
| Molecular weight | 150.31 |
|---|---|
| Linear formula | HS(CH2)6SH |
| Assay | 99.5% |
| Boiling point | 118-119 °C/15 mmHg(lit.) |
| Density | 0.983 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.511(lit.) |
| Vapour pressure | ~1 mmHg (20 °C) |
| Melting point | −21 °C(lit.) |
| Flash point | 91 °C / 195.8 °F |
|---|---|
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
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 1,6-Hexanedithiol primarily used for?
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1,6-Hexanedithiol is primarily used as a building block in chemical synthesis and for applications in materials science, including self-assembly and micro/nanoelectronics.
What are the CAS number and chemical formula for 1,6-Hexanedithiol?
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The CAS number for 1,6-Hexanedithiol is 1191-43-1, and its linear formula is HS(CH2)6SH.
What grade and purity does Tech Serve Solutions supply for 1,6-Hexanedithiol?
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Tech Serve Solutions supplies 1,6-Hexanedithiol with an assay of 99.5%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with 1,6-Hexanedithiol?
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1,6-Hexanedithiol is combustible with a flash point of 91°C (195.8°F). It has a relatively high vapour pressure at room temperature, which should be considered during handling.
How is 1,6-Hexanedithiol typically packed and shipped?
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1,6-Hexanedithiol is carefully packed and exported by Tech Serve Solutions in compliance with international shipping regulations for chemicals.
How can I request a quote or sample of 1,6-Hexanedithiol?
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To request a quote or sample of 1,6-Hexanedithiol, please contact our sales team through the website or by phone.
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