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Pentamethyldisiloxane
CAS: 1438-82-0 | C5H16OSi2
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
1438-82-0
Molecular Formula:
C5H16OSi2
Molecular Mass:
148.35 g/mol
Names and Synonyms:
Pentamethyldisiloxane
Disiloxane, 1,1,1,3,3-pentamethyl-
Disiloxane, pentamethyl-
1,1,1,3,3-Pentamethyldisiloxane
Pentamethyldisiloxane
Trimethylsiloxydimethylsilane
1,1,3,3,3-Pentamethyldisiloxane
Dimethyl(trimethylsilyloxy)silane
Dimethyl(trimethylsiloxy)silane
[(Dimethylsilyl)oxy]trimethylsilane
Identifiers:
SMILES:
C[SiH](C)O[Si](C)(C)C
InChI:
InChI=1S/C5H16OSi2/c1-7(2)6-8(3,4)5/h7H,1-5H3
Key Properties
Boiling Point
86-87 °C
CAS Common Chemistry
Density
0.76 g/cm³
CAS Common Chemistry
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
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 148.35 g/mol | CAS Common Chemistry |
| 148.35399999999998 g/mol | RDKit | |
| 148.073968192 g/mol | RDKit | |
| Density | 0.76 g/cm³ | CAS Common Chemistry |
| 0.758 g/cm3 | CAS Common Chemistry | |
| Boiling Point | 86-87 °C | CAS Common Chemistry |
| Canonical SMILES | O([SiH](C)C)[Si](C)(C)C | CAS Common Chemistry |
| InChI | InChI=1S/C5H16OSi2/c1-7(2)6-8(3,4)5/h7H,1-5H3 | CAS Common Chemistry |
| InChI Key | InChIKey=AOJHDNSYXUZCCE-UHFFFAOYSA-N | CAS Common Chemistry |
| Name | Pentamethyldisiloxane | CAS Common Chemistry |
| Heavy Atom Count | 8 | 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 | 1.8213 | RDKit |
| Molar Refractivity | 43.30800000000002 | RDKit |
