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235687 Sigma-Aldrich

Hexamethylcyclotrisiloxane

98%

Synonym: Cyclic (D3) permethylsiloxane

  • CAS Number 541-05-9

  • Empirical Formula (Hill Notation) C6H18O3Si3

  • Molecular Weight 222.46

  •  EC Number 208-765-4

  •  MDL number MFCD00005943

  •  PubChem Substance ID 24853993

  •  NACRES NA.22

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Properties

Related Categories Chemical Synthesis, Organometallic Reagents, Organosilicon, Siloxanes
Quality Level   100
vapor density   1 (vs air)
assay   98%
bp   134 °C (lit.)
mp   50-64 °C (lit.)
SMILES string   C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1
InChI   1S/C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3
InChI key   HTDJPCNNEPUOOQ-UHFFFAOYSA-N

Description

Application

Hexamethylcyclotrisiloxane (D3) can be used in the synthesis of:
•  Polysiloxanes by anionic ring-opening polymerization.        
•  Thin films by pulsed- plasma-enhanced chemical vapor deposition (PECVD) for the application of insulating biomaterials.
•  Dimethoxydimethylsilane by treating with dimethyl carbonate via deoligomerization using alkali metal hydroxide catalyst.

Packaging

25, 100 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS02  GHS02
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN1325 - class 4.1 - PG 2 - Flammable solids, organic, n.o.s., HI: all
WGK Germany 
WGK 3
Flash Point(F) 
95.0 °F - closed cup
Flash Point(C) 
35 °C - closed cup
Protocols & Articles

Articles

Organosilanes for Cross-coupling

Over the past several years, Pd-catalyzed cross-coupling of silicon compounds has rapidly gained acceptance as a suitable alternative to more commonly known methods such as: Stille (Sn), Kumada (Mg),...
ChemFiles 2006, 6.5, 7.
Keywords: Aldrichimica Acta, Antifungals, Catalysis, Coupling reactions, Cross couplings, Grignard Reaction, Ligands, Metallations, Methods, Protocols, Silylations, Vinylations

Peer-Reviewed Papers
15

References

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