Phenyl Silane | Phenyl Silanes

SiSiB® PC8221

Diphenyldimethoxysilane (Donor B).
Synonym: Dimethoxydiphenylsilane

Countertype of Evonik CD 6010, Dynasylan 6010, Catylen D200, DowCorning Z-6047, ShinEtsu KBM-202SS

Chemical Structure


SiSiB® PC8221 is a colorless clear liquid.

Typical Physical Properties

Chemical Name: Diphenyldimethoxysilane
CAS No.: 6843-66-9
EINECS No.: 229-929-1
Empirical Formula: C14H16O2Si
Molecular Weight: 244.36
Boiling Point: 161°C [760mmHg]
Flash Point: 121°C
Color and Appearance: Colorless clear liquid
Density [25°C]: 1.077
Refractive Index [25°C]: 1.5447[25°C]

Min. 99.7% (Grade A)

Min. 99.5% (Grade B)

Min. 99.0% (Grade C)

Min. 98.0% (Grade D)


SiSiB® PC8221 can be used as a stereo-regulator for Ziegler-Natta-catalysts to increase the isotactic index in polypropylene. (B donor)

SiSiB® PC8221 can be used as raw materials for Phenyl Silicone Rubber, Phenyl Silicone Resin and Phenyl Silicone Fluid.


Net weight 200Kg steel drum, for more details, please visit Packing Centre.

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