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

Modify Date: 2025-08-25 17:01:33

1,1,1,3,5,7,7,7-Octamethyltetrasiloxane Structure
1,1,1,3,5,7,7,7-Octamethyltetrasiloxane structure
Common Name 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane
CAS Number 16066-09-4 Molecular Weight 282.632
Density 0.863 Boiling Point 205.1±23.0 °C at 760 mmHg
Molecular Formula C8H26O3Si4 Melting Point <0ºC
MSDS N/A Flash Point 77.8±22.6 °C

 Names

Name 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.863
Boiling Point 205.1±23.0 °C at 760 mmHg
Melting Point <0ºC
Molecular Formula C8H26O3Si4
Molecular Weight 282.632
Flash Point 77.8±22.6 °C
Exact Mass 282.095886
PSA 27.69000
LogP 7.69
Vapour Pressure 0.4±0.4 mmHg at 25°C
Index of Refraction 1.386
InChIKey OHSYWAVRSCQMHG-UHFFFAOYSA-N
SMILES C[Si](O[Si](C)O[Si](C)(C)C)O[Si](C)(C)C

 Safety Information

Hazard Codes Xi
Risk Phrases 36/37/38
Safety Phrases S24/25
RIDADR UN 1993
HS Code 2942000000

 Synthetic Route

~%

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Detail
Literature: US2595890 , ; C. A., , p. 7820 GB632954 , ; C. A., , p. 7866

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Literature: Scheim, U.; Ruehlmann, K.; Grosse-Ruyken, H.; Porzel, A. Journal of Organometallic Chemistry, 1986 , vol. 314, p. 39 - 46

~6%

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 61, # 6.2 p. 1378 - 1383,1257 - 1261

~0%

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 61, # 6.2 p. 1378 - 1383,1257 - 1261

~%

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Literature: Bulletin of the Chemical Society of Japan, , vol. 29, p. 547

~6%

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

1,1,1,3,5,7,7,7...

CAS#:16066-09-4

Detail
Literature: J. Gen. Chem. USSR (Engl. Transl.), , vol. 61, # 6.2 p. 1378 - 1383,1257 - 1261

~%

Detail
Literature: Journal of the American Chemical Society, , vol. 68, p. 963

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

1,1,1,3,5,7,7,7-Octamethyltetrasiloxane
Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-,
MFCD00053664
1,3-BIS(TRIMETHYLSILOXY)-1,3-DIMETHYLDISILOXANE
Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-
EINECS 240-209-6
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