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Molecule
Hexamethyldisiloxane
CAS: 107-46-0 · C6H18OSi2
2D Structure
3D Structure
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Basic Information
- CAS Registry Number
- 107-46-0
- Molecular Formula
- C6H18OSi2
- Molecular Mass
- 162.38 g/mol
Identifiers
CAS Registry Number
107-46-0
SMILES
C[Si](C)(C)O[Si](C)(C)C
InChI Key
UQEAIHBTYFGYIE-UHFFFAOYSA-N
InChI
InChI=1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
Names and Synonyms
- Hexamethyldisiloxane Synonym
- Disiloxane, 1,1,1,3,3,3-hexamethyl- Synonym
- OS 10 Fluid Synonym
- Disiloxane, hexamethyl- Synonym
- 1,1,1,3,3,3-Hexamethyldisiloxane Synonym
- Hexamethyldisiloxane Synonym
- Bis(trimethylsilyl) ether Synonym
- Bis(trimethylsilyl) oxide Synonym
- HMDS Synonym
- SWS-F 221 Synonym
- Belsil DM 0.65 Synonym
- OS 10 Synonym
- OS 10 (siloxane) Synonym
- DC 0.65cs200 Synonym
- Dow Corning OS 10 Synonym
- KF 96L0.65 Synonym
- NSC 43346 Synonym
- HMDSO Synonym
- LS 7130 Synonym
- Dow Corning 200/0.65 Synonym
- Glipoxan Synonym
- SH 200-0.65cSt Synonym
- SH 200-0.65CS Synonym
- SF 0.65 Synonym
- Volasil DM 0.65 Synonym
- Volasil DM 0.65SP Synonym
- PSF-0.65cSt Synonym
- SH 200-0.6CS Synonym
- HX 18 Synonym
- MM Synonym
- MM (siloxane) Synonym
- OL-AK 065 Synonym
- Silicone Fluid AK 0.65 Synonym
- AK 0.65 Synonym
- Q 7-9180 Synonym
- Q 7-9180 Silicone Fluid Synonym
- Dow Corning Q 7-9180 Synonym
- Lintec MC 3102E Synonym
- MC 3102E Synonym
- SIH 6115.1 Synonym
- S 7205 Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 162.38 g/mol | CAS Common Chemistry |
| 162.38099999999997 g/mol | RDKit | |
| 162.381 g/mol | RDKit | |
| Density | 0.76 g/cm³ | CAS Common Chemistry |
| 0.7638 g/cm3 @ 20 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Hexamethyldisiloxane | CAS Common Chemistry |
| Boiling Point | 99.5 °C | CAS Common Chemistry |
| Canonical SMILES | O([Si](C)(C)C)[Si](C)(C)C | CAS Common Chemistry |
| InChI | InChI=1S/C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3 | CAS Common Chemistry |
| InChI Key | InChIKey=UQEAIHBTYFGYIE-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | -66 °C | CAS Common Chemistry |
| Name | Hexamethyldisiloxane | CAS Common Chemistry |
| Heavy Atom Count | 9 | RDKit |
| Hydrogen Bond Acceptors | 1 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 2 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 9.23 Ų | RDKit |
| LogP | 2.6728000000000005 | RDKit |
| 2.6728 | RDKit | |
| 2.79 | chempirical lib | |
| Molar Refractivity | 47.77700000000003 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 1.0 | RDKit |
| Exact Mass | 162.089618256 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
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0 ppm
| Shift (ppm) | DEPT | Assignment |
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Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
External Resources
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MW = 162.38 g/mol; density = 0.760 g/mL. Edit any field — others recompute live.
