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Molecule
1,1,1,3,5,5,5-Heptamethyltrisiloxane
CAS: 1873-88-7 · C7H22O2Si3
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 1873-88-7
- Molecular Formula
- C7H22O2Si3
- Molecular Mass
- 222.51 g/mol
Identifiers
CAS Registry Number
1873-88-7
SMILES
C[SiH](O[Si](C)(C)C)O[Si](C)(C)C
InChI Key
QNWOFLWXQGHSRH-UHFFFAOYSA-N
InChI
InChI=1S/C7H22O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h10H,1-7H3
Names and Synonyms
- 1,1,1,3,5,5,5-Heptamethyltrisiloxane Systematic Name
- Trisiloxane, 1,1,1,3,5,5,5-heptamethyl- Synonym
- 1,1,1,3,5,5,5-Heptamethyltrisiloxane Synonym
- Methylbis(trimethylsilyloxy)silane Synonym
- 2,2,4,6,6-Pentamethyl-3,5-dioxa-2,4,6-trisilaheptane Synonym
- Bis(trimethylsilyloxy)methylsilane Synonym
- Methylbis(trimethylsiloxy)silane Synonym
- Bis(trimethylsiloxy)methylsilane Synonym
- 1,1,1,3,5,5,5-Heptamethylsiloxane Synonym
- Heptamethylhydrotrisiloxane Synonym
- SIB 1844.0 Synonym
- SIB 1844 Synonym
- 2-Hydro-1,1,1,2,3,3,3-heptamethyltrisiloxane Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 222.51 g/mol | CAS Common Chemistry |
| 222.509 g/mol | RDKit | |
| Density | 0.81 g/cm³ | CAS Common Chemistry |
| 0.813 g/cm3 | CAS Common Chemistry | |
| Boiling Point | 141-142 °C | CAS Common Chemistry |
| Canonical SMILES | O([SiH](O[Si](C)(C)C)C)[Si](C)(C)C | CAS Common Chemistry |
| InChI | InChI=1S/C7H22O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h10H,1-7H3 | CAS Common Chemistry |
| InChI Key | InChIKey=QNWOFLWXQGHSRH-UHFFFAOYSA-N | CAS Common Chemistry |
| Name | 1,1,1,3,5,5,5-Heptamethyltrisiloxane | CAS Common Chemistry |
| Heavy Atom Count | 12 | RDKit |
| Hydrogen Bond Acceptors | 2 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 4 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 18.46 Ų | RDKit |
| LogP | 2.5397000000000007 | RDKit |
| 2.5397 | RDKit | |
| Molar Refractivity | 61.87500000000004 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 1.0 | RDKit |
| Exact Mass | 222.09275953399998 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
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3
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1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
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200 ppm
180
160
140
120
100
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60
40
20
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 = 222.51 g/mol; density = 0.810 g/mL. Edit any field — others recompute live.
Related
Related molecules
Other compounds with formula C7H22O2Si3.
