1. Appearance: Colorless clear liquid
2. Purity (GC): ≥97.0% (typical ≥98.0%)
3. Moisture: ≤0.1%
4. Refractive Index (20 °C): 1.404–1.406
5. Boiling Range: 102–105 °C
6. Residue on Evaporation: ≤0.05%

Applications

• Organic Synthesis: Silylating agent for hydroxyl group protection (forms stable TBS ethers); alternative to moisture-sensitive TBSCl, milder reaction, fewer byproducts.
• Surface Modification: Hydrophobic treatment for glass, metal, and mineral surfaces; enhances water repellency and corrosion resistance.
• Silicone Resins & Coatings: Used as a capping/coupling agent to improve thermal stability and mechanical properties.
• Pharmaceutical Intermediates: Key building block for synthesizing complex molecules (e.g., prostaglandins, steroids).

Safety Information

• Flammability: Vapor may form explosive mixtures with air; keep away from heat, sparks, open flame.
• Skin Contact: May cause irritation; wear nitrile gloves, wash skin thoroughly after handling.
• Eye Contact: Causes severe irritation; wear safety goggles, flush with water for ≥15 min and seek medical help.
• Inhalation: May irritate respiratory tract; use fume hood or ventilation.
• Storage: Keep sealed in cool, dry place (2–8 °C); separate from oxidants, strong acids, and moisture.