Siloxanes | Cyclosiloxanes | Organosiloxanes | Cyclic Siloxanes

SiSiB® PC9273

Synonym: (Bis(trimethylsiloxy)methylsilane)

Chemical Structure


SiSiB® PC9273 is a colorless to yellowish clear liquid.

Typical Physical Properties

Chemical Name: Heptamethyltrisiloxane
CAS No.: 1873-88-7
EINECS No.: 217-496-1
Empirical Formula: C7H22O2Si3
Molecular Weight: 222.51
Boiling Point: 142°C [760mmHg]
Flash Point: 22°C
Color and Appearance: Colorless clear liquid
Density [25°C]: 0.819
Refractive Index [25°C]: 1.382 [25°C]
Purity: Min. 99.0% by GC


SiSiB® siloxanes are widely used in cosmetics, deodorant, water repelling windshield coating, food additives and some soaps.


Net weight 150Kg plastic drum or 750Kg IBC tote, for more details, please visit Packing Centre.

Technical Library

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