Silazane | Silylating Agent | Pharmaceutical Manufacturing | Silane Blocking Agents

SiSiB® PC9230

Synonym: 1,3-Bis(trimethylsilyl)urea.

Chemical Structure


SiSiB® silazane is any hydride of silicon and nitrogen having a straight or branched chain of silicon and nitrogen atoms joined by covalent bonds. By extension, the word is also used for any organic derivative of such compounds. They are analogous to siloxanes, with -NH- replacing -O-. Their individual name is dependent on the number of silicon atoms in the chemical structure.

Typical Physical Properties

Chemical Name: N,N'-Bis(Trimethylsilyl)urea(BSU)
CAS No.: 18297-63-7 or 127290-39-5
EINECS No.: 242-177-9
Empirical Formula: C7H20N2OSi2
Molecular Weight: 204.42
Boiling Point: 222°C
Flash Point: 65°C
Color and Appearance: White solid with mild odor
Density [25°C]: 0.887
Refractive Index [25°C]: N/A
Purity: 99%


SiSiB® silanes are versatile materials used in a wide range of applications including:
Silane Coupling Agent, Silane Adhesion Promoter, Silane Hydrophobing Agent, Silane Dispersing Agent, Silane Crosslinking Agent, Silane Moisture Scavenger, Polypropylene Catalyst "Donor" Silane, Silicate Stabilizer, Polyurethane Endcapper Silane, Silane Drying Agent, Silane Curing Agent, Silane Reinforcer, Silylating Agent, Silane Reducing Agent, Silyl Building Blocks and Synthons etc.

SiSiB® PC9230 is used as silylation agent, protective agent.


Net weight 210L steel drum or 1000L IBC container, for more details, please visit Packing Centre.

Technical Library

Download Technical Data Sheet Safety Data Sheet


Download 2010 SiSiB® SILANE Catalogue