1,1,3,3,5,5,7,7-Octamethyltetrasiloxane

Basic Information

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CAS Number

1000-05-1

Molecular Formula

C8H26O3Si4

Molecular Weight

282.64 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

<0°C

Boiling Point

172°C

Flash Point

77.8±22.6 ºC,

Solubility

Insuluble (1.5E-3 g/L) (25 ºC),

Refractive Index

1.3877 (20 ºC)

SMILES

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C[Si](C)O[Si](C)(C)O[Si](C)(C)O[Si](C)C

InChI

InChI=1S/C8H26O3Si4/c1-12(2)9-14(5,6)11-15(7,8)10-13(3)4/h12-13H,1-8H3

InChIKey

MMAKNNYIZYDWTD-UHFFFAOYSA-N

LogP

2.4066

Topological Polar Surface Area

27.69 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

174

Safety Information

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GHS Hazard Pictograms

H227

Hazard Statement

H227 Combustible liquid
Flammable liquids

Synonyms & References

English

EINECS 213-669-0
CHEMBL3988891
1,1,3,3,5,5,7,7-Ctamethyl-Tetrasiloxane
1000-05-1
DTXSID8044759
O0502
SCHEMBL187714
BS-53214
NCGC00248153-01
BAA00005
YB15PH50RH
NCGC00254634-01
1,1,3,3,5,5,7,7-Ctamethyltetrasiloxane
Tox21_300728
UNII-YB15PH50RH
[[(dimethyl-$l^{3}
CAS-1000-05-1
1,1,3,3,5,5,7,7-Octamethyltetrasiloxane
DTXCID6024759
1,1,3,3,5,5,7,7-Ctamethyltetrasiloxane,80%Inctamethylcyclotetrasiloxane
1,1,3,3,5,5,7,7-octamethyl tetrasiloxane
AKOS024462460
1,1,3,3,5,5,7,7-Ctamethyltetrasiloxane, 80% In Ctamethylcyclotetrasiloxane
FT-0633222
Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl-
Tetrasiloxane,1,1,3,3,5,5,7,7-octamethyl-
[[(dimethyl-λ<sup>3</sup>-silanyl)oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilicon
1,1,3,3,5,5,7,7-octamethyl-tetrasiloxan
dihydro-1,1,3,3,5,5,7,7-octamethyltetrasiloxane
Octamethyltetrasiloxane
Tetrasiloxane,1,1,3,3,5,5,7,7-octamethyl

MDL Number

MFCD00039789

Customs Code

2934999090

FAQ

What is 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1)?

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) is a silicon-based compound with a molecular formula of C8H24Si4. It is a colorless, odorless, and viscous liquid with a high boiling point. This compound is a key component in silicone oils and has excellent thermal stability and low volatility.

What are the main uses of 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1)?

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) is widely used in the production of silicone oils and lubricants, as well as in cosmetics and personal care products. It is also utilized in the manufacturing of adhesives, sealants, and electrical insulation due to its excellent thermal and chemical stability.

Is 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) safe?

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) is considered safe when used according to guidelines. However, it is important to follow safety precautions such as wearing protective gloves and goggles, and ensuring proper ventilation. Ingestion or inhalation can be harmful, so it should be handled carefully.

How should 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) be stored?

1,1,3,3,5,5,7,7-Octamethyltetrasiloxane (CAS: 1000-05-1) should be stored in a cool, dry place away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent evaporation and contamination. Maintain a temperature below 30°C and avoid exposure to moisture to ensure its stability and safety.