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Octamethylcyclotetrasiloxane
CAS: 556-67-2 | C8H24O4Si4
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
556-67-2
Molecular Formula:
C8H24O4Si4
Molecular Weight:
296.62 g/mol
Names and Synonyms:
Octamethylcyclotetrasiloxane
Common Name
L 6907
Synonym
2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
Synonym
Additive 8030
Synonym
SH 30
Synonym
SH 244 Fluid
Synonym
ZBH 270
Synonym
YF 393
Synonym
XF 3803
Synonym
PMX 0110
Synonym
DWQ 120
Synonym
DWQ 110
Synonym
Dow Corning 244 Fluid
Synonym
DC 244
Synonym
Silbione 70045V2
Synonym
SH 244
Synonym
NSC 345674
Synonym
Y 7175
Synonym
Tetracyclomethicone
Synonym
DC 5258
Synonym
Dabco DC 5258
Synonym
D 4
Synonym
LS 8620
Synonym
TSF 404
Synonym
Mirasil CM 4
Synonym
DC 344
Synonym
Volasil 244
Synonym
Dow Corning 344
Synonym
Dow Corning 244
Synonym
Silbione V 2
Synonym
Octamethylcyclotetrasiloxanes
Synonym
Abil K 4
Synonym
SH 344
Synonym
KF 994
Synonym
Cyclic dimethylsiloxane tetramer
Synonym
VS 7207
Synonym
UC 7207
Synonym
SF 1173
Synonym
Union Carbide 7207
Synonym
NUC Silicone VS 7207
Synonym
Octamethylcyclotetrasiloxane
Synonym
2,2,4,4,6,6,8,8-Octamethylcyclotetrasiloxane
Synonym
Cyclotetrasiloxane, octamethyl-
Synonym
Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octamethyl-
Synonym
Identifiers:
SMILES:
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
InChI:
InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
Molecular
| Property | Value | Source |
|---|---|---|
| Molecular Weight | 296.62 g/mol | RDKit |
Exact
| Property | Value | Source |
|---|---|---|
| Exact Molecular Weight | 296.07516536799994 g/mol | RDKit |
Heavy
| Property | Value | Source |
|---|---|---|
| Heavy Atom Count | 16 count | RDKit |
Hydrogen
| Property | Value | Source |
|---|---|---|
| Hydrogen Bond Acceptors | 4 count | RDKit |
| Hydrogen Bond Donors | 0 count | RDKit |
Rotatable
| Property | Value | Source |
|---|---|---|
| Rotatable Bonds | 0 count | RDKit |
Aromatic
| Property | Value | Source |
|---|---|---|
| Aromatic Ring Count | 0 count | RDKit |
Topological
| Property | Value | Source |
|---|---|---|
| Topological Polar Surface Area | 36.92 Ų | RDKit |
Physical Properties
| Property | Value | Source |
|---|---|---|
| LogP | 2.8736000000000015 | RDKit |
| molecular_mass | 296.62 g/mol | Legacy Database |
| density | 0.96 g/cm³ | Legacy Database |
| wikipedia_url | https://en.wikipedia.org/wiki/Octamethylcyclotetrasiloxane None | Legacy Database |
| cas-boiling-point | 175 °C None | Legacy Database |
| cas-canonical-smile | O1[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C None | Legacy Database |
| cas-density | 0.9558 g/cm3 None | Legacy Database |
| cas-inchi | InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3 None | Legacy Database |
| cas-inchi-key | InChIKey=HMMGMWAXVFQUOA-UHFFFAOYSA-N None | Legacy Database |
| cas-melting-point | 17.5 °C None | Legacy Database |
| cas-name | Octamethylcyclotetrasiloxane None | Legacy Database |
| wikipedia-name | Octamethylcyclotetrasiloxane None | Legacy Database |
Molar
| Property | Value | Source |
|---|---|---|
| Molar Refractivity | 74.26800000000004 | RDKit |