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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
L 6907
2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
Additive 8030
SH 30
SH 244 Fluid
ZBH 270
YF 393
XF 3803
PMX 0110
DWQ 120
DWQ 110
Dow Corning 244 Fluid
DC 244
Silbione 70045V2
SH 244
NSC 345674
Y 7175
Tetracyclomethicone
DC 5258
Dabco DC 5258
D 4
LS 8620
TSF 404
Mirasil CM 4
DC 344
Volasil 244
Dow Corning 344
Dow Corning 244
Silbione V 2
Octamethylcyclotetrasiloxanes
Abil K 4
SH 344
KF 994
Cyclic dimethylsiloxane tetramer
VS 7207
UC 7207
SF 1173
Union Carbide 7207
NUC Silicone VS 7207
Octamethylcyclotetrasiloxane
2,2,4,4,6,6,8,8-Octamethylcyclotetrasiloxane
Cyclotetrasiloxane, octamethyl-
Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octamethyl-
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
| Category | Property | Value | Source |
|---|---|---|---|
| Molecular | Molecular Weight | 296.62 g/mol | RDKit |
| Exact | Exact Molecular Weight | 296.07516536799994 g/mol | RDKit |
| Heavy | Heavy Atom Count | 16 count | RDKit |
| Hydrogen | Hydrogen Bond Acceptors | 4 count | RDKit |
| Hydrogen Bond Donors | 0 count | RDKit | |
| Rotatable | Rotatable Bonds | 0 count | RDKit |
| Aromatic | Aromatic Ring Count | 0 count | RDKit |
| Topological | Topological Polar Surface Area | 36.92 Ų | RDKit |
| Physical Properties | 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 | Legacy Database | |
| cas-boiling-point | 175 °C | Legacy Database | |
| cas-canonical-smile | O1[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C | Legacy Database | |
| cas-density | 0.9558 g/cm3 | 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 | Legacy Database | |
| cas-inchi-key | InChIKey=HMMGMWAXVFQUOA-UHFFFAOYSA-N | Legacy Database | |
| cas-melting-point | 17.5 °C | Legacy Database | |
| cas-name | Octamethylcyclotetrasiloxane | Legacy Database | |
| wikipedia-name | Octamethylcyclotetrasiloxane | Legacy Database | |
| Molar | Molar Refractivity | 74.26800000000004 | RDKit |
