Silanes | Silane | Donor Silanes | Alkylalkoxy Silane

SiSiB® PC9540

Isobutyl isopropyl dimethoxy silane
Synonym: Isopropyl isobutyl dimethoxysilane

Countertype of Evonik PSX5305, Dynasylan 9405, Catylen D700, Crompton Eurenor 5020

Chemical Structure


SiSiB® silane donors are used in combination with Ziegler-Natta catalysts to increase the isotactic index of Polypropylene.

Typical Physical Properties

Chemical Name: Isobutylisopropyldimethoxysilane
CAS No.: 111439-76-0
EINECS No.: 402-580-4
Empirical Formula: C9H22O2Si
Molecular Weight: 190.36
Boiling Point: 178°C [760mmHg]
Flash Point: 49°C
Color and Appearance: Colorless clear liquid
Density [25°C]: 0.871
Refractive Index [25°C]: 1.4125[20°C]
Purity: 99% by GC


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.


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