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Merck
CN

760293

Sigma-Aldrich

2,4,6,8-四甲基环四硅氧烷

packaged for use in deposition systems

别名:

TMCTS

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关于此项目

线性分子式:
(HSiCH3O)4
化学文摘社编号:
2370-88-9
分子量:
240.51
Beilstein:
1775282
EC 号:
219-137-4
MDL编号:
MFCD00039567
UNSPSC代码:
12352103
PubChem化学物质编号:
329766852
NACRES:
NA.23

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等级

deposition grade

方案

≥99.5% (GC)
≥99.999% (trace metals analysis)

表单

liquid

折射率

n20/D 1.387 (lit.)

沸点

134 °C (lit.)

mp

−69 °C (lit.)

密度

0.986 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES字符串

C[SiH]1O[SiH](C)O[SiH](C)O[SiH](C)O1

InChI

1S/C4H16O4Si4/c1-9-5-10(2)7-12(4)8-11(3)6-9/h9-12H,1-4H3

InChI key

BQYPERTZJDZBIR-UHFFFAOYSA-N

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应用

2, 4, 6, 8-Tetramethylcyclotetrasiloxane (TMCTS) is an important precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics, semiconductors and other applications

特点和优势

薄膜晶体管 (TFT) 栅极电介质的前体，TiO 上光化学形成的 SiOX 单层的组分。

象形图

Flame
GHS02

警示用语：

Warning

危险声明

H226

危险分类

Flam. Liq. 3

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

75.2 °F - closed cup

闪点(°C)

24 °C - closed cup

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Can the empty deposition cylinders be refilled?

    Yes, we are able to refill these cylinders through our SAFC Hitech group.  Please contact our Technical Service department by email at techserv@sial.com, and they will forward you to the appropriate SAFC Hitech representative for a quote.

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Ward, L. J.; et al.
Langmuir, 19, 2110-2110 (2003)
Pai, C. S.; et al.
Materials Chemistry and Physics, 44, 1-1 (1996)
Dae-Yoon Kim et al.
Soft matter, 11(1), 58-68 (2014-11-20)
Unconventional star-shaped liquid crystals (abbreviated as SiLCs) were successfully synthesized by chemically connecting four cyanobiphenyl anisotropic mesogens to the periphery of a super-hydrophobic and ultra-flexible cyclic tetramethyltetrasiloxane ring with flexible hexyl chains. Based on the combined experimental techniques of differential

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