1,9-Nonanedithiol CAS 3489-28-9: Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
1,9-Nonanedithiol (CAS 3489-28-9) is a dithiol compound with the molecular formula C9H20S2. It features two thiol (-SH) groups at terminal positions, making it highly reactive in surface modification and nanotechnology applications.
Key Parameters:
| Parameter | 1,9-Nonanedithiol | Comparable Thiols |
|---|---|---|
| Molecular Weight | 192.38 g/mol | Octanedithiol: 178.34 g/mol |
| Boiling Point | 285-290°C | Decanedithiol: 295-300°C |
| Solubility | Ethanol, THF, DMF | Limited in polar solvents |
| Storage | 2-8°C under nitrogen | Similar requirements |
2. Applications & Industrial Uses
Core Applications:
- Surface Functionalization: Forms self-assembled monolayers (SAMs) on gold and semiconductor surfaces
- Nanoelectronics: Molecular wiring in quantum dot assemblies
- Biosensors: Anchor molecules for protein immobilization
- Lubricant Additives: Extreme pressure performance enhancer
3. Usage Guidelines & Best Practices
Recommended Protocol for SAM Formation:
- Prepare 1 mM solution in ethanol
- Immerse substrate for 12-24 hours
- Rinse with pure ethanol
- Dry under nitrogen stream
Safety Note: Use in fume hood with nitrile gloves due to thiol volatility.
4. Case Studies
Case 1: Gold Nanoparticle Stabilization
A research team achieved 6-month colloidal stability using 0.5% 1,9-Nonanedithiol as capping agent, demonstrating superior performance versus shorter-chain alternatives.
5. Client Success Stories
Electronics Manufacturer A (Shenzhen, China)
Implemented 1,9-Nonanedithiol in MEMS devices:
- 35% reduction in contact resistance
- Enhanced device lifetime by 2.8×
University Research Lab B (Tokyo, Japan)
Developed novel biosensor platform achieving 10-12 M detection limits through optimized SAM formation.
6. Request Customized Solutions
Our technical team provides:
- Bulk quantities (100g to 100kg batches)
- Custom purity grades (98%-99.9%)
- Application-specific formulation support
Contact our specialists:
Email: info@vivalr.com
Tel: (86) 15866781826
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