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235733

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1,1,3,3-Tetramethyldisiloxane

97%

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Synonym(s):
1,3-dihydrotetramethyldisiloxane, sym-tetramethyldisiloxane, Bis(dimethylsilyl)ether, Bis(dimethylsilyl)oxide, Tetramethyldisiloxane
Linear Formula:
[(CH3)2SiH]2O
CAS Number:
Molecular Weight:
134.32
Beilstein/REAXYS Number:
1733364
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

liquid

refractive index

n20/D 1.370 (lit.)

bp

70-71 °C (lit.)

density

0.76 g/mL at 25 °C (lit.)

SMILES string

C[SiH](C)O[SiH](C)C

InChI

1S/C4H14OSi2/c1-6(2)5-7(3)4/h6-7H,1-4H3

InChI key

NVYQDQZEMGUESH-UHFFFAOYSA-N

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This Item
44019192361360716
1,1,3,3-Tetramethyldisiloxane 97%

235733

1,1,3,3-Tetramethyldisiloxane

Hexamethyldisilazane reagent grade, ≥99%

440191

Hexamethyldisilazane

Chlorotrimethylsilane ≥98.0% (GC)

92361

Chlorotrimethylsilane

Tris(trimethylsilyl)silane 97%

360716

Tris(trimethylsilyl)silane

density

0.76 g/mL at 25 °C (lit.)

density

-

density

0.856 g/mL at 25 °C (lit.)

density

0.806 g/mL at 25 °C (lit.)

refractive index

n20/D 1.370 (lit.)

refractive index

n20/D 1.407 (lit.)

refractive index

n20/D 1.387 (lit.)

refractive index

n20/D 1.489 (lit.)

bp

70-71 °C (lit.)

bp

125 °C (lit.)

bp

57 °C (lit.)

bp

73 °C/5 mmHg (lit.)

form

liquid

form

liquid

form

liquid

form

liquid

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.

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.

pictograms

Flame

signalword

Danger

hcodes

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

14.0 °F - closed cup

flash_point_c

-9.99 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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An efficient catalytic and solvent-free method for the synthesis of mono-organofunctionalized 1, 1, 3, 3-tetramethyldisiloxane derivatives
Januszewski R, et al.
Journal of Organometallic Chemistry, 846, 263-268 (2017)
1, 1, 3, 3-Tetramethyldisiloxane
Deng J
Synlett, 22, 2102-2103 (2011)
1, 1, 3, 3-Tetramethyldisiloxane
Laval S, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Tetrahedron Letters, 25, 3123-3123 (1984)

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