N,O-Bis Trimethylsilyl Acetamide (10416-59-8)

N,O-Bis(trimethylsilyl)acetamide (BSA) is an organosilicon silylating reagent with the chemical formula C8H21NOSi2. It appears as a clear, colorless liquid, moisture-sensitive, and soluble in many organic solvents. It reacts readily with water and compounds containing active hydrogen groups such as hydroxyl, carboxyl, and amino groups.
In terms of uses and applications, BSA is widely used in analytical chemistry and organic synthesis as a derivatization reagent. It converts polar compounds into trimethylsilyl derivatives for improved volatility and thermal stability in GC and GC-MS analysis. It is also used in the pharmaceutical and fine chemical industries for protecting functional groups during synthesis. In research laboratories, it serves in nucleoside, steroid, sugar, and amino acid derivatization. Additionally, it is applied in specialty chemical manufacturing where selective silylation is required for efficient processing and analysis.