CAS 2554-06-5; 2,4,6,8-四乙烯基-2,4,6,8-四甲基环四硅氧烷; Cyclotetrasiloxane,2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-

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T830193

MACKLIN

2,4,6,8-四甲基-2,4,6,8-四乙烯基环四硅氧烷

≥95%

28元/5g; 40元/25g; 90元/100g; 338元/500g; 1540元/2.5kg;

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储存：2~8°C
状态：无色液体
折射率：n20/D 1.434(lit.)

T2523

TCI

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

>97.0%(GC)

185元/5G; 540元/25G;

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基本信息

纯度/分析方法	>97.0%(GC)
分子式/分子量	C₁₂H₂₄O₄Si₄ = 344.66
外观与形状(20℃)	液体
储存在惰性气体下	存放于惰性气体之中
应避免的情况	湿气 (分解)
Reaxys-RN	1807272
PubChem物质ID	87560361
MDL编号	MFCD00040293

技术规格

Appearance	Colorless to Almost colorless clear liquid
Purity(GC)	min. 97.0 %

物性(参考值)

熔点	-44 ℃
沸点	110 ℃/10 mmHg
闪点	112 ℃
比重	0.99
折射率	1.43
水溶性	不溶

安全信息

图形或危害标志
信号词	警告
危险性说明	H319 : 造成严重眼刺激。
防范说明	P264 : 作业后彻底清洗皮肤。 P280 : 戴防护眼罩/戴防护面具。 P337 + P313 : 如仍觉眼刺激：求医/就诊。 P305 + P351 + P338 : 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。

相关法规

RTECS#

GZ4550000

552391

J&K

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

97%

145元/5G; 282元/25G; 928元/100G;

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基本信息

分子式	C₁₂H₂₄O₄Si₄
分子量	344.66
熔点	-44
沸点	111-112
闪点	112
密度	0.99
折光率(n20D)	1.4340
MDL编码	MFCD00040293
Beilstein	1807272
EINECS 编号	219-863-1

安全信息

图形或危害标志
提示语	Warning
危险说明	H319
防范说明	P305+P351+P338
WGK	3
RTECS	GZ4550000
TSCA	是

L16645

Alfa Aesar

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

97%

1221元/50g; 4508元/250g;

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应用
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.

备注
Moisture sensitive. Incompatible with acids, bases and strong oxidizing agents.

基本信息

MDL
MFCD00040293

EINECS
219-863-1

分子式
C₁₂H₂₄O₄Si₄

分子量
344.67

熔点
-43°

沸点
110°/10mm

闪点
112°(233°F)

密度
0.997

折射率
1.4340

灵敏度
Ambient temperatures.

形态
Liquid

溶解性
Miscible with most organic solvents.

Beilstein
1807272

GHS危害和防范说明

GHS符号

Hazard Statements
H319
Causes serious eye irritation.

Precautionary Statements
P280i-P264-P305+P351+P338-P337+P313
Wear eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.If eye irritation persists: Get medical advice/attention.

安全信息

危险类别
36
Irritating to eyes.

安全等级
26-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.This material and its container must be disposed of as hazardous waste

RTECS
GZ4550000

TSCA
是

396281

Sigma-Aldrich

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane

603.61元/10 ML; 1156.62元/50 ML;

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产品说明

一般描述

在Pd催化剂存在下，该试剂与芳基溴化物交叉偶联，得到苯乙烯衍生物。

包装

10, 50 mL in poly bottle

基本信息

线性分子式	[-Si(CH₃)(CH=CH₂)O-]₄
分子量	344.66
EC 号	219-863-1
MDL编号	MFCD00040293
PubChem化学物质编号	24864664
NACRES	NA.23

产品性质

质量水平	100
折射率	n20/D 1.434 (lit.)
bp	111-112 ℃/10 mmHg (lit.)
mp	−44 ℃ (dec.) (lit.)
密度	0.997 g/mL at 25 ℃ (lit.)
SMILES string	C[Si]1(O[Si](C)(O[Si](C)(O[Si](C)(O1)C=C)C=C)C=C)C=C
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
InChI key	VMAWODUEPLAHOE-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Warning
危险声明	H319
预防措施声明	P305 + P351 + P338
危险分类	Eye Irrit. 2
储存分类代码	10 - Combustible liquids
WGK	WGK 2
闪点(F)	212.0 °F - closed cup
闪点(C)	100 ℃ - closed cup
个人防护装备	Eyeshields, Gloves, type ABEK (EN14387) respirator filter

S16500

Fluorochem

1,3,5,7-Tetravinyltetramethylcyclotetrasiloxane

97%

330元/25g; 1100元/100g;

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基本信息

CAS Number	2554-06-5
MDL Number	MFCD00040293
Boiling Point	111-112℃
Melting Point	-55.6℃
Density	0.988

安全信息

图形或危害标志
危险性说明	H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.
防范说明	P233: Keep container tightly closed. P260: Do not breathe . P261: Avoid breathing . P264: Wash hands thoroughly after handling. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312: Call a POISON CENTER or doctor/physician if you feel unwell. P321: Specific treatment (see relevant procedures. on this label). P332 + P313: If skin irritation occurs: Get medical advice/ attention. P337 + P313: If eye irritation persists: Get medical advice/attention. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P362: Take off contaminated clothing and wash before reuse. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to in accordance with local regulation .