2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane | CAS No. 556-67-2

Q: What are the main uses of 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2)?

This compound is primarily used in the synthesis of other silicon-containing materials, such as silicone oils and polymers. It also finds applications in pharmaceutical research, as a precursor for drug development, and in specialty chemical manufacturing where unique properties are required. Its use in food-related products is limited and typically requires specific regulatory approval.

Q: How should 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2) be stored?

This compound should be stored in a cool, dry, and dark place, away from moisture and direct sunlight. It is best kept in a sealed, airtight container to maintain stability. Storage conditions should be controlled to prevent degradation, and it is important to ensure proper ventilation to avoid exposure to fumes.

2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane

Basic Information

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CAS Number

556-67-2

Molecular Formula

C8H24O4Si4

Molecular Weight

296.62 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Basic Physical Properties

Melting Point

17-18 °C

Boiling Point

175-176 °C

Solubility

<0.001g/l Hydrolysis

Refractive Index

n20/D 1.396(lit.)

SMILES

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C[Si]1(C)O[Si](C)(C)O[Si](O[Si](O1)(C)C)(C)C

InChI

InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3

InChIKey

HMMGMWAXVFQUOA-UHFFFAOYSA-N

LogP

2.8736000000000015

Topological Polar Surface Area

36.92 Å²

Hydrogen Bond Donor/Acceptor

0 / 4

Complexity

197

Safety Information

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Hazard Statement

H226 Flammable liquid and vapor
Flammable liquids

H361 Suspected of damaging fertility or the unborn child
Reproductive toxicity

H413 May cause long lasting harmful effects to aquatic life
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 3 Class 3

Sensitiveness

Moisture Sensitive

Explosive Limit

0.4-11.7%(V)

Synonyms & References

English

Octamethyl cyclotetrasiloxane
Octamethyl cyclotetrasilazane
octaphenyl silsesquioxane
2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
D4 Cyclomethicone
Octamethylcyclotetra
Octamethylcyclotetrasiloxane1000µg
Dimethylsiloxane Cyclic Tetramer
Octamethylcyclotetrasiloxane(D4)
Dimethylcyclosiloxane
Cyclotetrasiloxane,octamethyl- (8CI,9CI)
Abil K 4
Cyclic dimethylsiloxane tetramer
D 4
DC 244
DC 344
DC 5258
DWQ 110
DWQ 120
Dabco DC 5258
Dow Corning 244
Dow Corning244 Fluid
Dow Corning 344
KF 994
LS 8620
Mirasil CM 4
NSC 345674
NUCSilicone VS 7207
Cyclotetrasiloxane, octamethyl-
Octamethylcyclotetrasiloxane

MDL Number

MFCD00003269

FAQ

What is 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2)?

2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2) is a synthetic organosilicon compound characterized by its complex structure of eight methyl groups and four oxygen atoms attached to a silicon-based backbone. It is a white solid with low solubility in water and is commonly used as a chemical intermediate in research and industrial applications.

What are the main uses of 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2)?

This compound is primarily used in the synthesis of other silicon-containing materials, such as silicone oils and polymers. It also finds applications in pharmaceutical research, as a precursor for drug development, and in specialty chemical manufacturing where unique properties are required. Its use in food-related products is limited and typically requires specific regulatory approval.

Is 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2) safe?

2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2) is generally considered safe when handled properly. However, it is recommended to use appropriate protective equipment, such as gloves and goggles, during handling. Safety data sheets should be consulted to ensure compliance with handling and disposal guidelines for chemical safety.

How should 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane (CAS: 556-67-2) be stored?

This compound should be stored in a cool, dry, and dark place, away from moisture and direct sunlight. It is best kept in a sealed, airtight container to maintain stability. Storage conditions should be controlled to prevent degradation, and it is important to ensure proper ventilation to avoid exposure to fumes.