CAS No.2554-06-5,2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	2554-06-5
Name:	2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
Article Data:	9

Formula:	C₁₂H₂₄O₄Si₄
Molecular Weight:	344.662
Synonyms:	Cyclotetrasiloxane,2,4,6,8-tetramethyl-2,4,6,8-tetravinyl- (6CI,7CI,8CI);1,3,5,7-Tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane;1,3,5,7-Tetramethyltetravinylcyclotetrasiloxane;1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane;1,3,5,7-Tetravinyltetramethylcyclotetrasiloxane;2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane;2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane;LS 8670;PS 925;SIT7900;VMC;s-Tetramethyltetravinylcyclotetrasiloxane;
EINECS:	219-863-1
Density:	0.967 g/cm³
Melting Point:	-44 °C
Boiling Point:	247.805 °C at 760 mmHg
Flash Point:	94.338 °C
Solubility:	insoluble in water
Appearance:	Colorless transparent liquid
Hazard Symbols:	Xi
Risk Codes:	36
Safety:	26-36
PSA:	36.92000
LogP:	3.25520

Synthetic route

: 75-77-4
chloro-trimethyl-silane

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

C: 16522-66-0
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

D: 16545-47-4
1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane

Conditions

Conditions	Yield
With water In toluene at 20℃; for 27h; Further byproducts given;	A n/a B n/a C 26% D 10 % Chromat.
With water In toluene at 20℃; for 27h; Further byproducts given;	A n/a B n/a C 26 % Chromat. D 10%

...Expand

: 75-77-4
chloro-trimethyl-silane

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

C: 16522-66-0
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

D: 34372-23-1
C18H42O5Si6

Conditions

Conditions	Yield
With water In toluene at 20℃; for 27h; Further byproducts given;	A n/a B n/a C 26% D 6 % Chromat.

...Expand

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions

Conditions	Yield
With water In toluene at 20℃; for 27h;	A 24% B 19 % Chromat.
With water In toluene at 20℃; for 27h;	A 26 % Chromat. B 12%

: 124-70-9
Dichloromethylvinylsilane

: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

Conditions

Conditions	Yield
With ethanol

: 75-77-4
chloro-trimethyl-silane

: 124-70-9
Dichloromethylvinylsilane

A: 5356-85-4
methylbis(trimethylsilyloxy)vinylsilane

B: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

D: 16522-66-0
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane

Conditions

Conditions	Yield
With water In toluene at 20℃; for 27h; Further byproducts given. Yields of byproduct given;	A 31 % Chromat. B n/a C n/a D n/a

...Expand

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 17704-22-2
2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

C: 18304-82-0
2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

D: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions

Conditions	Yield
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given;
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Yields of byproduct given;

...Expand

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 17704-22-2
2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane

C: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

Conditions

Conditions	Yield
With tetrahydrofuran; lithium at 35 - 45℃; Product distribution; Mechanism;
With tetrahydrofuran; lithium at 35 - 45℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

...Expand

: 124-70-9
Dichloromethylvinylsilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B: 18304-82-0
2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

C: 3901-77-7
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane

D: 17704-23-3
2,4,6,8,10,12,14-Heptamethyl-2,4,6,8,10,12,14-heptavinyl-1,3,5,7,9,11,13-heptaoxa-2,4,6,8,10,12,14-heptasila-cyclotetradecane

Conditions

Conditions	Yield
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given;

...Expand

: 5507-44-8
methylvinyldiethoxysilane

A: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

B 2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinyl-cyclopentasiloxane, 2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane: 2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinyl-cyclopentasiloxane, 2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane

Conditions

Conditions	Yield
With hydrogenchloride

: 124-70-9
Dichloromethylvinylsilane

: 107-51-7
Octamethyltrisiloxane

A: 107-46-0
Hexamethyldisiloxane

B: 2554-06-5
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane

C: 16545-47-4
1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane

D: 1,1,1,3,5,5,7,7,9,9,9-undecamethyl-3-vinylpentasiloxane

Conditions

Conditions	Yield
With dimethyl sulfoxide Heating; Further byproducts given. Title compound not separated from byproducts;

...Expand

Raw Materials

5507-44-8

75-77-4

124-70-9

Downstream Products

1233-36-9

2944-70-9

769-25-5

4705-34-4

827-54-3

637-69-4

5339-18-4

612-15-7

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Specification

The 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane, with the CAS registry number 2554-06-5, is also known as 1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane. It belongs to the product categories of Si (Classes of Silicon Compounds); Siloxanes; Si-O Compounds; Silicone Monomers Organometallic Reagents; Monomers; Organosilicon. Its EINECS number is 219-863-1. This chemical's molecular formula is C₁₂H₂₄O₄Si₄ and molecular weight is 344.66. What's more, its systematic name is 2,4,6,8-Tetramethyl-2,4,6,8-tetravinyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane. Its classification code is Mutation data. This chemical should be sealed and stored in a cool and dry place.

Physical properties of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane are: (1)#H bond acceptors: 4; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 36.92 Å²; (5)Index of Refraction: 1.455; (6)Molar Refractivity: 96.626 cm³; (7)Molar Volume: 356.389 cm³; (8)Polarizability: 38.305×10^-24cm³; (9)Surface Tension: 20.6 dyne/cm; (10)Density: 0.967 g/cm³; (11)Flash Point: 94.338 °C; (12)Enthalpy of Vaporization: 46.535 kJ/mol; (13)Boiling Point: 247.805 °C at 760 mmHg; (14)Vapour Pressure: 0.04 mmHg at 25°C.

Preparation: this chemical can be prepared by dichloro-methyl-vinyl-silane at the temperature of 20 °C. This reaction will need reagent H₂O and solvent toluene with the reaction time of 27 hours. The yield is about 24%.

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane can be prepared by dichloro-methyl-vinyl-silane at the temperature of 20 °C

Uses of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane: it can be used to produce 4-vinyl-benzoic acid ethyl ester at the temperature of 20 °C. It will need reagent TBAF and solvent tetrahydrofuran with the reaction time of 10 min. This reaction will also need catalyst Pd(dba)₂. The yield is about 85%.

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane can be used to produce 4-vinyl-benzoic acid ethyl ester at the temperature of 20 °C

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing.

You can still convert the following datas into molecular structure:
(1)SMILES: O1[Si](O[Si](O[Si](O[Si]1(\C=C)C)(\C=C)C)(\C=C)C)(\C=C)C
(2)Std. InChI: 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
(3)Std. InChIKey: VMAWODUEPLAHOE-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LC	inhalation	> 1320mg/m³/4H (1320mg/m³)		National Technical Information Service. Vol. OTS0572745.
rat	LD50	oral	> 15gm/kg (15000mg/kg)		National Technical Information Service. Vol. OTS0572732.