Basic information
- CAS
2554-06-5- Standard SMILES
C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1- InChIKey
VMAWODUEPLAHOE-UHFFFAOYSA-N- Molecular formula
- C12H24O4Si4
- Average molar mass
- 344.66 g/mol
- Monoisotopic mass
- 344.07516538
Overview
structure in first source
Names & identifiers
- Preferred name
- 1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane
- IUPAC
- 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
- English name
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- Molecular formula
- C12H24O4Si4
- Molecular weight
- 344.66
Names & synonyms
2554-06-52,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxaneCyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxaneTM-TVCS2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane3NT606T1VKDTXSID3038808Cyclotetrasiloxane, 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-DTXCID1018808RefChem:412447219-863-1
Show more names
METHYLVINYLCYCLOSILOXANED'4VMCDK7062,4,6,8-TETRAMVinyl ring body
2,4,6,8-Tetramethyl-2,4,6,8-tetravinyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane27342-69-41,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxaneC12H24O4Si42,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxaneTetravinyltetramethylcyclotetrasiloxaneS-TetramethyltetravinylcyclotetrasiloxaneUNII-3NT606T1VK
Database identifiers
- CAS
Properties
Computed structural properties
- Topological polar surface area
- 36.9 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 4
- Heavy atoms
- 20
- Formal charge
- 0
- Complexity
- 341
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
SpringerMaterials PropertiesViscosity
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physical DescriptionLiquid; [Aldrich MSDS]
Physicochemical properties
- Melting point
- 44 °C · −44 °C (dec.)(lit.)
- Boiling point
- 111 · 111-112 °C10 mm Hg(lit.)
- Density
- 0.997 g/mL · 0.997 g/mL at 25 °C(lit.)
- vapor pressure
- 93.5 Pa · 93.5Pa at 25℃
- refractive index
- 20 · n20/D 1.435
- Flash point
- 210 °F · 210 °F
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- Miscible with most organic solvents.
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 49.8% (135 of 271) of reports.
Warning
H319 (39.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement)
Aggregated GHS information provided per 271 reports by companies from 7 notifications to the ECHA C&L Inventory.
This chemical does not meet GHS hazard criteria for 80% (4 of 5) of all reports.
Hazard information
Regulatory Information
Chemical: Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-
Chemical: Cyclotetrasiloxane, tetraethenyltetramethyl-
REACH registered substance: 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane (EC: 219-863-1)
Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryA skin, respiratory tract, and strong eye irritant; [Aldrich MSDS] See Octamethylcyclotetrasiloxane.
Hazard Classes and Categories
Eye Irrit. 2 (39.9%)
Acute Tox. 4 (20%)
Toxicology
Toxicity DataLC50 (rat) > 1,320 mg/m3/4hr
Safety data
- F
- 10
- PPE
- Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Chemistry & industry
Uses & manufacturing
General Manufacturing Information
Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-: ACTIVE
Cyclotetrasiloxane, tetraethenyltetramethyl-: ACTIVE
Applications
Uses2,4,6,8-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.
Uses2,4,6,8-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 DescriptionIn the presence of a Pd catalyst, this reagent cross-couples with aryl bromides to give styrene derivatives.
Suppliers40 total
深圳市星凯越生物科技有限公司0755-18589069862 18589069862 · [email protected]
上海比阳实业有限公司+86-21-52699951; +8613917686115 · [email protected]
湖北鑫杰成化工科技有限公司13554075426 · [email protected]
武汉欣扬瑞和化学科技有限公司153-07155313 15307155313 · [email protected]
Related reactions
1 records
Compound notes
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