1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane

Basic Information

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CAS Number

18420-09-2

Molecular Formula

C8H22O3Si2

Molecular Weight

222.43 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

-134°C

Boiling Point

161 °C

Refractive Index

n20/D 1.389(lit.)

SMILES

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CCO[Si](C)(C)O[Si](C)(C)OCC

InChI

InChI=1S/C8H22O3Si2/c1-7-9-12(3,4)11-13(5,6)10-8-2/h7-8H2,1-6H3

InChIKey

NPOYZXWZANURMM-UHFFFAOYSA-N

LogP

2.4796000000000005

Topological Polar Surface Area

27.69 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

132

Safety Information

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Hazard Statement

H226 Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

1,1,3,3-tetramethyl-1,3-diethoxy disiloxane
SY073790
DTXSID5066372
ethoxy-[ethoxy(dimethyl)silyl]oxy-dimethyl-silane
E78427
NS00051732
NPOYZXWZANURMM-UHFFFAOYSA-N
C8H22O3Si2
4,4,6,6-tetramethyl-3,5,7-trioxa-4,6-disilanonane
AKOS015915555
4-CHLORO-3-HYDROXY1H-INDAZOLE
1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane, 97%
FT-0624759
SCHEMBL217139
70851-25-1
1,1,3,3-Tetramethyl-1,3-diethoxydisiloxane
ethoxy-[ethoxy(dimethyl)silyl]oxy-dimethylsilane
A812843
MFCD00053754
1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane
1,3-diethoxy-1,1,3,3-tetramethyl-disiloxane
Tetramethyl-1,3-diethoxy disiloxane
Disiloxane, 1,3-diethoxy-1,1,3,3-tetramethyl-
18420-09-2
METHOXY TERMINATED POLYDIMETHYLSILOXANE
EINECS 242-298-7
1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane 97%
FS-5027
Disiloxane,1,3-diethoxy-1,1,3,3-tetramethyl-
1,3-Diaethoxy-1,1,3,3-tetramethyl-disiloxan
1,3-Diethoxytetramethyldisiloxan

MDL Number

MFCD00053754

Customs Code

2934999090

FAQ

What are the physical and chemical properties of 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane (CAS: 18420-09-2)?

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is a colorless, viscous liquid with a high boiling point and low volatility. It has a molecular weight of approximately 306.4 g/mol. The compound is soluble in common organic solvents but has limited water solubility. Chemically, it is less reactive compared to other organosilicon compounds, but it can undergo hydrolysis under acidic conditions. It is used as a stabilizer and as a coupling agent in various applications.

How is 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane (CAS: 18420-09-2) typically synthesized?

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is typically synthesized through the reaction of tetramethyldiylidene and ethoxytris(dimethylsilyl)germane. The synthesis involves the condensation of these two precursors in the presence of a suitable catalyst. The yield is generally high, and the product has good selectivity and purity.

What industries use 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane (CAS: 18420-09-2)?

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is utilized in various industries. It is commonly used as a stabilizer and coupling agent in pharmaceuticals, polymers, and sensors. Additionally, it plays a role in semiconductor manufacturing as a cleaner and in the synthesis of organosilicon compounds. Its versatility makes it a valuable chemical across multiple sectors.

What precautions should be taken when handling 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane (CAS: 18420-09-2)?

When handling 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane, it is important to use personal protective equipment (PPE) such as gloves, safety glasses, and a laboratory coat. Work should be performed in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up immediately using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions. Storage should be in a cool, dry place away from combustibles.