Divinyltetramethyldisiloxane
Synonym(s):1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
- CAS NO.:2627-95-4
- Empirical Formula: C8H18OSi2
- Molecular Weight: 186.4
- MDL number: MFCD00014933
- EINECS: 220-099-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:40
What is Divinyltetramethyldisiloxane?
Chemical properties
Colorless or yellowish transparent liquid
The Uses of Divinyltetramethyldisiloxane
Divinyl tetramethyl disiloxane could be used as a additives(intermediates) in the production process of addition silicone rubber, silicone gel, liquid silicone, vinyl silicone resin, vinyl silicone oil, platinum chromium compound and others. POTENTIAL VINYL NUCLEOPHILE IN CROSS-COUPLING REACTIONS. 1,3-Divinyltetramethyldisiloxane acts as a potential vinyl donor used in cross-coupling reactions. It is also involved in the copolymerization reaction with aromatic ketones.
Flammability and Explosibility
Flammable
Properties and Applications
Divinyltetramethyldisiloxane (DVTMSO) could used as a diolefin ligand in the complexes with d10-metal centers (M). This is a rather labile ligand capable of changing the π–π-bridging function to the chelating one in the ligand exchange reactions to form a stable six-membered cycle, for example, Pd(0)(CH2=CH–Si)2O. In addition, DVTMSO is the first representative of the series of unsaturated polysiloxanes, whose complexes, including those with Cu(I), serve as precursors for producing thin copper films by thermal disproportionation[1].
References
[1] T. Duzak. “Tetragonal cubanoid Cu4X4 in the isostructural π-complexes with divinyltetramethyldisiloxane: [Cu4X4(C8H18OSi2) (X = Cl, Br).” Russian Journal of Coordination Chemistry 35 6 (2009): 416–421.
Properties of Divinyltetramethyldisiloxane
| Melting point: | -99 °C (lit.) |
| Boiling point: | 139 °C (lit.) |
| Density | 0.809 g/mL at 25 °C (lit.) |
| vapor pressure | 17hPa at 25℃ |
| refractive index | n |
| Flash point: | 76 °F |
| storage temp. | Flammables area |
| form | liquid |
| Specific Gravity | 0.811 |
| color | colorless |
| Water Solubility | insoluble |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| BRN | 1762585 |
| CAS DataBase Reference | 2627-95-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Disiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-(2627-95-4) |
| EPA Substance Registry System | 1,3-Divinyl-1,1,3,3-tetramethyl disiloxane (2627-95-4) |
Safety information for Divinyltetramethyldisiloxane
| Signal word | Danger |
| Pictogram(s) |
![]() Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for Divinyltetramethyldisiloxane
| InChIKey | BITPLIXHRASDQB-UHFFFAOYSA-N |
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