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Tetramethyl Orthosilicate
CAS: 681-84-5 | C4H12O4Si
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
681-84-5
Molecular Formula:
C4H12O4Si
Molecular Mass:
152.22 g/mol
Names and Synonyms:
Tetramethyl Orthosilicate
Silicic acid (H4SiO4), tetramethyl ester
Methyl silicate ((MeO)4Si)
Tetramethoxysilane
Silane, tetramethoxy-
Tetramethyl silicate
Tetramethyl orthosilicate
Methyl orthosilicate
Methyl silicate ((CH3)4SiO4)
Methyl silicate
Silicon tetramethoxide
Silicon methoxide (Si(OMe)4)
TMOS
KBM 04
Methyl Silicate 39
Methyl Silicate 28
T 1980
LS 540
SIT 7510.0
TSL 8114
Siluplex
Dynasil M
NSC 67383
OCD-T 2
MZ 51
MKC Silicate MS 39
Methyl Silicate 40
Methyl Silicate 51L
WD 931
TO 588
NIC-C 5
Identifiers:
SMILES:
CO[Si](OC)(OC)OC
InChI:
InChI=1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3
Key Properties
Boiling Point
121-122 °C @ Press: 760 Torr
CAS Common Chemistry
Melting Point
-2 °C
CAS Common Chemistry
Density
1.03 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 | 152.22 g/mol | CAS Common Chemistry |
| 152.22199999999998 g/mol | RDKit | |
| 152.05048539400002 g/mol | RDKit | |
| Density | 1.03 g/cm³ | CAS Common Chemistry |
| 1.032 g/cm3 @ Temp: 20 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Tetramethyl_orthosilicate | CAS Common Chemistry |
| Boiling Point | 121-122 °C @ Press: 760 Torr | CAS Common Chemistry |
| Canonical SMILES | O(C)[Si](OC)(OC)OC | CAS Common Chemistry |
| InChI | InChI=1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3 | CAS Common Chemistry |
| InChI Key | InChIKey=LFQCEHFDDXELDD-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | -2 °C | CAS Common Chemistry |
| Name | Tetramethoxysilane | CAS Common Chemistry |
| Tetramethyl orthosilicate | CAS Common Chemistry | |
| Heavy Atom Count | 9 | RDKit |
| Hydrogen Bond Acceptors | 4 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 4 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 36.92 Ų | RDKit |
| LogP | 0.007599999999999829 | RDKit |
| Molar Refractivity | 33.78999999999999 | RDKit |
