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| CAS No.: | 18406-41-2 |
|---|---|
| Name: | 1,2-BIS(TRIMETHOXYSILYL)ETHANE |
| Article Data: | 10 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H22O6Si2 |
| Molecular Weight: | 270.43 |
| Synonyms: | Ethylenebis[trimethoxysilane];XC 95A7405;1,4-Disilabutane,1,1,1,4,4,4-hexamethoxy- (8CI);1,2-Ethylenebis(trimethoxysilane);2,7-Dioxa-3,6-disilaoctane,3,3,6,6-tetramethoxy-; |
| EINECS: | 242-285-6 |
| Density: | 1 g/cm3 |
| Melting Point: | <0 °C |
| Boiling Point: | 206.4 °C at 760 mmHg |
| Flash Point: | 66.7 °C |
| Appearance: | Colorless to slight yellow liquid |
| Hazard Symbols: |
 T+
|
| Risk Codes: | 26 |
| Safety: | 23-36/37-45 |
| Transport Information: | UN 3382 6.1/PG 1 |
| PSA: | 55.38000 |
| LogP: | 0.74260 |
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Chemistry
IUPAC NAME: Trimethoxy(2-trimethoxysilylethyl)silane
Molecular Formula: C8H22O6Si2
Molecular Weight: 270.43 g/mol
Melting Point: <0 °C
Density: 1 g/cm3
Flash Point: 66.7 °C
Boiling Point: 206.4 °C at 760 mmHg
Following is the structure of 1,2-Ethylenebis(trimethoxysilane) (CAS No.18406-41-2):
Index of Refraction: 1.41
Molar Refractivity: 67.01 cm3
Molar Volume: 270.2 cm3
Surface Tension: 22.2 dyne/cm
H-Bond Acceptor: 6
Rotatable Bond Count: 9
Exact Mass: 270.095492
MonoIsotopic Mass: 270.095492
Topological Polar Surface Area: 55.4
Heavy Atom Count: 16
Canonical SMILES: CO[Si](CC[Si](OC)(OC)OC)(OC)OC
InChI: InChI=1S/C8H22O6Si2/c1-9-15(10-2,11-3)7-8-16(12-4,13-5)14-6/h7-8H2,1-6H3
InChIKey: JCGDCINCKDQXDX-UHFFFAOYSA-N
EINECS: 242-285-6
Product Categories of 1,2-Ethylenebis(trimethoxysilane) (CAS No.18406-41-2): Bridged MonomersSelf Assembly&Contact Printing; Organosilicon; POSS Precursors and Intermediates; Self-Assembly Materials; Silane Coupling Agents/Adhesion Promoters; SilanesSelf Assembly&Contact Printing; Silsesquioxanes: POSS Nanohybrids; Tri-Alkoxy&Greater SilanesOrganometallic Reagents; Trialkoxysilanes
Toxicity Data With Reference
| 1. | ihl-rat LC50:2400 ppb/4H | TOXID9 Toxicologist. 14 (1994),312. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes: 
T+
Risk Statements: 26
R26:Very toxic by inhalation.
Safety Statements: 23-36/37-45
S23:Do not breathe vapour.
S36/37:Wear suitable protective clothing and gloves.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 3382 6.1/PG 1
WGK Germany: 3
RTECS: JG7873000
TSCA: Yes
A poison by inhalation. A combustible liquid. When heated to decomposition it emits acrid smoke and irritating vapors.
Specification
1,2-Ethylenebis(trimethoxysilane) (CAS No.18406-41-2) is also named as Bis(trimethoxysilyl)ethane ; 1,2-Bis(trimethoxysilyl)ethane ; 1,4-Disilabutane, 1,1,1,4,4,4-hexamethoxy- ; 3,3,6,6-Tetramethoxy-2,7-dioxa-3,6-disilaoctane ; 4-04-00-04265 (Beilstein Handbook Reference) ; BRN 1776976 ; Dow corning X1-6145A ; Hexamethoxydisilylethane .