Dynasylan® HMDS

Dynasylan® HMDS - Hexamethyldisilazane acts as efficient silylating agent in the pharmaceutical industry, as adhesion promoter in the microelectronic industry and as hydrophobation agent, e.g. for fillers. Dynasylan® HMDS is a clear colourless liquid.

Typical Applications

Dynasylan® HMDS is the most commonly used reagent for silylation of protic organic and inorganic materials.
The main applications are:

Blocking and protection of hydroxylic groups in natural products
Stabilization for further modification, formation of volatile products
Blocking and protection of functional groups in organic intermediates
The silylated derivatives exhibit improved chemical stability than the basic products and enable chemical reactions which otherwise would not be possible
Derivatization of protic compounds for analytical in vestigations
The silylated derivatives are volatile and can be detected by gas chromatography

Benefits at a glance

- Hydrophobation product for e.g. Aerosil products
- Easy and fast hydrophobation
- Silylating agents in the pharmaceutical industry, adhesion promoters in the electronic industry, hydrophobation of fillers
- HMDS is used as a coating material in the semiconductor industry before applying a photoresist. When HMDS is deposited on a surface, it leaves methyl groups behind. These then bond with the OH molecules on the silicon surface and help develop a strong adhesion when a photoresist is applied