- Chemical Name:Hexamethyldisilazane
- Functions:Precursor, Silylating Agent, Intermediate, Reagent
- Chemical Family:Ammonium Compounds, Silanes
Hexamethyldisilazane (also known as Bis(trimethylsilyl)amine, or HMDS) is an organosilicon compound with the molecular formula [(CH3)3Si]2NH. The molecule is a derivative of ammonia with trimethylsilyl groups in place of two hydrogen atoms. This colorless liquid is a reagent and a precursor to bases that are popular in organic synthesis and organometallic chemistry.