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Potassium bis(trimethylsilyl)amide is commonly abbreviated as KHMDS with molecular formula [(CH3)3Si]2NK. It is widely used as Bronsted base in synthesis.
P 1090 (OTTO) Potassium hexamethyldisilazide, 95% CAS NO- 40949-94-8,used in the preparation of poly(ethylene oxide). Sterically hindered base employed in selective cyclization reactions. Also used in the preparation of lanthanide complexes.