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1,1,3,3-Tetramethyldisiloxane

ALDRICH/235733 - 97%

Synonym: 1,3-dihydrotetramethyldisiloxane; sym-tetramethyldisiloxane; Bis(dimethylsilyl)ether; Bis(dimethylsilyl)oxide; Tetramethyldisiloxane

CAS Number: 3277-26-7
Empirical Formula (Hill Notation): C4H14OSi2
Molecular Weight: 134.32
EC Number: 221-906-4
MDL Number: MFCD00008256
Linear Formula: [(CH3)2SiH]2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-235733-25G 25 g
 $40.10
1/EA		 Add To Favorites
45-235733-100G 100 g
 $133.00
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assay 97%
bp 70-71 °C (lit.)
density 0.76 g/mL at 25 °C (lit.)
form liquid
InChI 1S/C4H14OSi2/c1-6(2)5-7(3)4/h6-7H,1-4H3
InChI key NVYQDQZEMGUESH-UHFFFAOYSA-N
Quality Level 100 
refractive index n20/D 1.370 (lit.)
SMILES string C[SiH](C)O[SiH](C)C
Application: 1,1,3,3-Tetramethyldisiloxane can be used as:
• A reactant to synthesize mono-functionalized siloxane derivatives via hydrosilylation reaction.
• A reducing agent to synthesize alkyl halides from aldehydes.
General description: 1,1,3,3-Tetramethyldisiloxane is an inexpensive, nontoxic, and mild reducing agent. It is an attractive hydride source for hydrosilylation reactions, dehydrogenative silylations, and polymer production due to its electrophilic nature.
Other Notes: A Practical Procedure for Reduction of Primary, Secondary and Tertiary Amides to Amines 
Packaging: 25, 100 g in glass bottle
Symbol GHS02  GHS02
Signal word Danger
Hazard statements H225
Precautionary statements P210 - P233 - P240 - P241 - P242 - P243
Hazard Codes F
Risk Statements 11-16
Safety Statements 16
RIDADR UN 1993BF 3 / PGII
WGK Germany WGK 2
Flash Point(F) 14.0 °F - closed cup
Flash Point(C) -9.99 °C - closed cup
Purity 97%
bp 70-71 °C (lit.)
Density 0.76 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.370 (lit.)
UNSPSC 12352103

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