天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

ChemicalBook--->CAS DataBase List--->2554-06-5

2554-06-5

2554-06-5 Structure

2554-06-5 Structure
IdentificationMore
[Name]

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
[CAS]

2554-06-5
[Synonyms]

1,3,5,7-TETRAVINYL-1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE
1,3,5,7-TETRAVINYLTETRAMETHYLCYCLOTETRASILOXANE
2,4,6,8-TETRAMETHYL-2,4,6,8-TETRAVINYLCYCLOTETRASILOXANE
2,4,6,8-TETRAMETHYLTETRAVINYLCYCLOTETRASILOXANE
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
1,3,5,7-Tetramethyl-1,3,5,7-etravinylcyclotetrasiloxane
1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane
2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-cyclotetrasiloxan
2,4,6,8-tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane
2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-Cyclotetrasiloxane
Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-
Cyclotetrasiloxane,2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-
s-tetramethyltetravinylcyclotetrasiloxane
Tetravinyltetramethylcyclotetrasiloxane
tetravinyl-tetramethylcyclo-tetrasiloxane
METHYLVINYLCYCLOSILOXANE
2,4,6,8-TETRAMETHYL2,4,6,8-TETRAVINYLCYCLO-TETRASILOXANE 99%
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
Vinylmethylcyclosiloxane
2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclooctanetetrasiloxane
[EINECS(EC#)]

219-863-1
[Molecular Formula]

C12H32O4Si4
[MDL Number]

MFCD00040293
[Molecular Weight]

352.72
[MOL File]

2554-06-5.mol
Chemical PropertiesBack Directory
[Appearance]

Colorless transparent liquid
[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 ]

n20/D 1.435
[Fp ]

210 °F
[storage temp. ]

2-8°C
[solubility ]

Miscible with most organic solvents.
[form ]

liquid
[color ]

Colorless to Almost colorless
[Specific Gravity]

0.998
[Water Solubility ]

7μg/L at 23℃
[Hydrolytic Sensitivity]

4: no reaction with water under neutral conditions
[BRN ]

1807272
[LogP]

6.47
[CAS DataBase Reference]

2554-06-5(CAS DataBase Reference)
[NIST Chemistry Reference]

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5)
[EPA Substance Registry System]

2554-06-5(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36:Irritating to the eyes.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

1
[RTECS ]

GZ4550000
[F ]

10
[TSCA ]

Yes
[HS Code ]

29319090
Hazard InformationBack Directory
[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.
[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]

Nonflammable
[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.]
Spectrum DetailBack Directory
[Spectrum Detail]

2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5)IR
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5)Raman
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5)FT-IR
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, 97%(2554-06-5)
[Sigma Aldrich]

2554-06-5(sigmaaldrich)
[TCI AMERICA]

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane,>97.0%(GC)(2554-06-5)
2554-06-5 suppliers list
Company Name: Wuhan Kemi-Works Chemical Co., Ltd.
Tel: +86-2785736489 +8618171418573 , +8618171418573
Website: http://www.kemiworks.com/
Company Name: Dongguan City Betterly New Materials co.,Ltd
Tel: +86-13713468294 +86-13713468294 , +86-13713468294
Website:
Company Name: Hebei Weibang Biotechnology Co., Ltd
Tel: +8615531157085 , +8615531157085
Website: www.weibangbio.com/
Company Name: Hebei Mojin Biotechnology Co., Ltd
Tel: +86 13288715578 +8613288715578 , +8613288715578
Website: http://www.mojinchemical.com
Company Name: Hebei Chuanghai Biotechnology Co,.LTD
Tel: +86-13131129325 , +86-13131129325
Website: www.chuanghaibio.com
Company Name: Hubei Changfu Chemical Co., Ltd.
Tel: +86-02784396550 +86-17721064038 , +86-17721064038
Website: www.cfsilanes.com
Company Name: Shandong Deshang Chemical Co., Ltd.
Tel: +86-0531-8875-2665 +8613153039501 , +8613153039501
Website: www.deshangchemical.com
Company Name: Hebei Zhuanglai Chemical Trading Co Ltd
Tel: +86-16264648883 +86-16264648883 , +86-16264648883
Website: www.hbzlchemi.com/
Company Name: Shanghai Daken Advanced Materials Co.,Ltd
Tel: +86-371-66670886
Website: https://www.dakenchem.com/
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512 , +86-19937530512
Website: https://www.tianfuchem.com/
Company Name: Shanghai Time Chemicals CO., Ltd.
Tel: +86-021-57951555 +8617317452075 , +8617317452075
Website: www.time-chemicals.com
Company Name: ATK CHEMICAL COMPANY LIMITED
Tel: +undefined-21-51877795
Website: www.atkchemical.com
Company Name: Win-Win Chemical CO., Limited
Tel: 0086-577-64498589
Website: www.win-winchemical.com
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 18871490254
Website: www.hubeijusheng.com
Company Name: Jinan Finer Chemical Co., Ltd
Tel: +86-531-88989536 +86-15508631887 , +86-15508631887
Website: http://www.finerchem.com/
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
Website: www.approvedhomemanagement.com/ShowSupplierProductsList1549548/0.htm
Company Name: Alchem Pharmtech,Inc.
Tel: 8485655694
Website: www.approvedhomemanagement.com/ShowSupplierProductsList454175/0.htm
Company Name: CONIER CHEM AND PHARMA LIMITED
Tel: +8618523575427 , +8618523575427
Website: http://www.conier.com/
Tags:2554-06-5 Related Product Information
541-02-6 3277-26-7 2224-33-1 16753-62-1 22984-54-9 540-97-6 541-05-9 107-46-0 556-67-2 1189-93-1 2370-88-9 2554-06-5