2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- CAS No.
- 2554-06-5
- Chemical Name:
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- Synonyms
- 2,4,6,8-TETRAMETHYL-2,4,6,8-TETRAVINYLCYCLOTETRASILOXANE;Tetravinyltetramethylcyclotetrasiloxane;METHYLVINYLCYCLOSILOXANE;1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane;Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-;D'4;VMC;DK706;2,4,6,8-TETRAM;Vinyl ring body
- CBNumber:
- CB9446902
- Molecular Formula:
- C12H24O4Si4
- Molecular Weight:
- 344.66
- MDL Number:
- MFCD00040293
- MOL File:
- 2554-06-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | −44 °C (dec.)(lit.) |
|---|---|
| Boiling point | 111-112 °C10 mm Hg(lit.) |
| Density | 0.997 g/mL at 25 °C(lit.) |
| vapor pressure | 93.5Pa at 25℃ |
| refractive index |
n |
| Flash point | 210 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Miscible with most organic solvents. |
| form | liquid |
| Specific Gravity | 0.998 |
| color | Colorless to Almost colorless |
| Viscosity | 6.3mm2/s |
| Water Solubility | 7μg/L at 23℃ |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| BRN | 1807272 |
| InChI | 1S/C12H24O4Si4/c1-9-17(5)13-18(6,10-2)15-20(8,12-4)16-19(7,11-3)14-17/h9-12H,1-4H2,5-8H3 |
| InChIKey | VMAWODUEPLAHOE-UHFFFAOYSA-N |
| SMILES | C[Si]1(O[Si](C)(O[Si](C)(O[Si](C)(O1)C=C)C=C)C=C)C=C |
| LogP | 6.47 |
| CAS DataBase Reference | 2554-06-5(CAS DataBase Reference) |
| Indirect Additives used in Food Contact Substances | TETRAMETHYLTETRAVINYLCYCLOTETRASILOXANE |
| FDA 21 CFR | 175.320 |
| EWG's Food Scores | 1 |
| FDA UNII | 3NT606T1VK |
| NIST Chemistry Reference | 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5) |
| EPA Substance Registry System | Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl- (2554-06-5) |
| UNSPSC Code | 12162002 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319 | |||||||||
| Precautionary statements | P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | GZ4550000 | |||||||||
| F | 10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
|||||||||
| Hazard Classifications | Repr. 1B | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane price More Price(39)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 396281 | 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane | 2554-06-5 | 10ml | $50.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | 396281 | 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane | 2554-06-5 | 50ml | $144 | 2026-04-30 | Buy |
| TCI Chemical | T2523 | 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane >97.0%(GC) | 2554-06-5 | 5g | $19 | 2026-04-30 | Buy |
| TCI Chemical | T2523 | 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane >97.0%(GC) | 2554-06-5 | 25g | $34 | 2026-04-30 | Buy |
| AK Scientific | O472 | 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane 98% | 2554-06-5 | 10g | $16 | 2026-06-04 | Buy |
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Chemical Properties, Uses, Production
Synthesis
The preparation method of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane includes: (1) adding methylvinyldichlorosilane to a low-temperature solvent system, reacting at low temperature for a period of time, and then raising it to a high-temperature condition for cyclization reaction. After the reaction is completed, the reaction solution is cooled and separated to obtain an acidic water layer and an oil layer; wherein, the solvent system includes water and surfactants; (2) adding salt solution to the oil layer for washing and sedimentation, and adjusting the pH value of the mixture to separate the hydrolysate; (3) performing vacuum distillation on the hydrolysate to obtain a fraction containing 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane. Figure: Synthesis reaction formula of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane.
Chemical Properties
Colorless transparent liquid
Physical properties
bp 224–224.5 °C.
Uses
2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane (1) (D4V) and the trimer, 2,4,6-triethenyl-2,4,6- trimethylcyclotrisiloxane (2) (D3V) are the two commercially available cyclic polyvinylmethylsiloxanes. D4 V is used as a vinyl donor in the palladium-catalyzed vinylation of aryl halides and as a building block in polymer chemistry and dendrimer synthesis. The palladium-catalyzed vinylation of substituted aryl halides using D4 V is a general and mild method for the preparation of a variety of substituted styrenes or dienes.It is widely used as reagent for the vinylation of aryl halides and building block for carbosilane dendrimers.
Uses
2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane is used as an intermediate in organic synthesis. It is used in the preparation of 4-vinyl-benzoic acid ethyl ester. Further, it is used to prepare styrene derivatives by cross-coupling with aryl bromide in the presence of palladium catalyst.
General Description
In the presence of a Pd catalyst, this reagent cross-couples with aryl bromides to give styrene derivatives.
Hazard
Low toxicity by ingestion and inhalation.
Flammability and Explosibility
Non flammable
Purification Methods
A 7mL sample can be distilled in a small Vigreux column (p 11) at atmospheric pressure without polymerisation or decomposition. It is soluble in cyclohexane. [Kantor et al. J Am Chem Soc 77 1685 1955, Beilstein 4 IV 4184.]
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei kefule Material Technology Co., Ltd | 027-84459282 13720265353 | zhou@cfmats.com | China | 359 | 58 |
| Nanjing Siwin New Material Co., Ltd. | 025-58205825 17735957853 | wangzb@si-win.com | China | 374 | 58 |
| Hubei Langbowan Biopharmaceutical Co., Ltd | 18086032675 | 3831791620@qq.com | China | 1887 | 58 |
| Guangzhou Rui Lion Biotechnology Co., LTD | 13168345686 17306666488 | 607141423@qq.com | China | 1725 | 58 |
| HUNEI MEIBEI NEW MATERIAL Co., Ltd. | 18271819653 | 1483755123@qq.com | China | 4737 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
View Latest Price from 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-14 | 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
2554-06-5
|
1kg | 98 | 20 tons | Hubei Changfu Chemical Co., Ltd. | ||
 |
2026-05-28 | 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
2554-06-5
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
2554-06-5
|
$9.90 | 1KG | 99% | 5tons | Hebei Chuanghai Biotechnology Co., Ltd |
-
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
2554-06-5
- $0.00
- 98
- Hubei Changfu Chemical Co., Ltd.
-
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
2554-06-5
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
2554-06-5
- $9.90
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
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