Back to Search
Molecule
Decamethylcyclopentasiloxane
CAS: 541-02-6 · C10H30O5Si5
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 541-02-6
- Molecular Formula
- C10H30O5Si5
- Molecular Mass
- 370.78 g/mol
Identifiers
CAS Registry Number
541-02-6
SMILES
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
InChI Key
XMSXQFUHVRWGNA-UHFFFAOYSA-N
InChI
InChI=1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3
Names and Synonyms
- Decamethylcyclopentasiloxane Common Name
- Cyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl- Synonym
- Cyclopentasiloxane, decamethyl- Synonym
- 2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane Synonym
- Decamethylcyclopentasiloxane Synonym
- Dimethylsiloxane pentamer Synonym
- Union Carbide 7158 Silicone Fluid Synonym
- Dow Corning 345 Synonym
- NUC Silicone VS 7158 Synonym
- Dow Corning 345 Fluid Synonym
- Cyclic dimethylsiloxane pentamer Synonym
- SF 1202 Synonym
- Silicone SF 1202 Synonym
- VS 7158 Synonym
- KF 995 Synonym
- Dow Corning 245 Synonym
- DC 245 Synonym
- Silbione V 5 Synonym
- Volasil 245 Synonym
- DC 345 Synonym
- TSF 465 Synonym
- LS 9000 Synonym
- Cyclo-decamethylpentasiloxane Synonym
- Execol D 5 Synonym
- TSF 405 Synonym
- Pentacyclomethicone Synonym
- SH 245 Synonym
- SH 245 (siloxane) Synonym
- TFS 405 Synonym
- Silbione 70045V5 Synonym
- Mirasil CM 5 Synonym
- Dow Corning 345EU Synonym
- DC 2-5252C Synonym
- Dow Corning 2-5252C Synonym
- DC 345 Fluid Synonym
- Dow Corning 245 Fluid Synonym
- Silicon Plus α Synonym
- Botanisil CP 33 Synonym
- Cyclopentasiloxane Synonym
- Cyclopentadimethylsiloxane Synonym
- D5 Synonym
- Volatile Silicone Fluid 345 Synonym
- Cyclomethicone pentamer 245 Synonym
- Xiameter PMX Synonym
- Xiameter PMX 0245 Synonym
- Tego Polish Additive 5 Synonym
- SH 245 Fluid Synonym
- Decamethylpentacyclosiloxane Synonym
- KF 7312T Synonym
- TSF 405A Synonym
- KF 955 Synonym
- D 5 (siloxane) Synonym
- Siloxane D 5 Synonym
- PMX 345 Synonym
- D 5 Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 370.78 g/mol | CAS Common Chemistry |
| 370.7750000000001 g/mol | RDKit | |
| 370.775 g/mol | RDKit | |
| Density | 0.96 g/cm³ | CAS Common Chemistry |
| 0.9593 g/cm3 @ 20 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Decamethylcyclopentasiloxane | CAS Common Chemistry |
| Boiling Point | 210 °C | CAS Common Chemistry |
| Canonical SMILES | O1[Si](O[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C)(C)C | CAS Common Chemistry |
| InChI | InChI=1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3 | CAS Common Chemistry |
| InChI Key | InChIKey=XMSXQFUHVRWGNA-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | -38 °C | CAS Common Chemistry |
| Name | Decamethylcyclopentasiloxane | CAS Common Chemistry |
| Heavy Atom Count | 20 | RDKit |
| Hydrogen Bond Acceptors | 5 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 46.150000000000006 Ų | RDKit |
| 46.15 Ų | RDKit | |
| LogP | 3.5920000000000023 | RDKit |
| 3.592 | RDKit | |
| 3.68 | chempirical lib | |
| Molar Refractivity | 92.83500000000005 cm³/mol | RDKit |
| Ring Count | 1 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 1.0 | RDKit |
| Exact Mass | 370.09395670999993 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
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.
External Resources
Convert
Quick conversion
MW = 370.78 g/mol; density = 0.960 g/mL. Edit any field — others recompute live.
