tert-Butyldimethylsilyl chloride

CAS: 18162-48-6

Category: Organosilicon Compounds

PurityReagent Grade ≥97%, High-Purity Grade ≥99%
Molecular FormulaC6H15ClSi
Molecular Weight150.72
AppearanceWhite to off-white crystalline low-melting solid or flakes
Packaging25 g/glass bottle, 100 g/glass bottle, or 200 kg/steel drum with polyethylene liner
Testing IndicatorsAppearance — Visual inspection; Melting point — Capillary method (GB/T 617); Purity — GC or HPLC; Chlorine content — Volhard titration; Moisture — Karl Fischer titration; Identification — FTIR (Si–Cl ~580 cm⁻¹), NMR; Protecting reactivity — Standard silylation test with alcohol.
Storage NotesStore locked up in a cool, dry, and well-ventilated place. It is generally a moisture-sensitive corrosive solid and should be kept in a tightly closed, corrosive-resistant container.
Lead Time
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days
A very common and versatile silylating reagent used in organic synthesis for the protection of hydroxyl (OH) groups (e.g., alcohols) to form tert-butyldimethylsilyl (TBDMS) ethers. TBDMS is a popular, stable, and easily cleaved protecting group.