Skip to Content
MilliporeSigma
All Photos(2)

Documents

512990

Sigma-Aldrich

2,4,6,8-Tetramethylcyclotetrasiloxane

≥98.5%, ≥99.999% trace metals basis

Sign Into View Organizational & Contract Pricing

Synonym(s):
1,3,5,7-Cyclotetra(methylsiloxane), 1,3,5,7-Tetramethylcyclotetrasiloxane, TMCTS
Linear Formula:
(HSiCH3O)4
CAS Number:
Molecular Weight:
240.51
Beilstein/REAXYS Number:
1775282
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥98.5%
≥99.999% trace metals basis

form

liquid

refractive index

n20/D 1.387 (lit.)

bp

134 °C (lit.)

mp

−69 °C (lit.)

density

0.986 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

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

Looking for similar products? Visit Product Comparison Guide

General description

Atomic number of base material: 14 Silicon

Features and Benefits

Precursor for gate dielectrics in thin-film transistors (TFT), and is a component of photochemically formed SiOX monolayers on TiO.

Pictograms

Flame

signalword

Warning

hcodes

Hazard Classifications

Flam. Liq. 3

wgk_germany

WGK 3

flash_point_f

75.2 °F

flash_point_c

24 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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

Articles

atomic layer deposition (ALD), microelectronics, Mo:Al2O3 films, nanocomposite coating, photovoltaics, semiconductor devices, W:Al2O3 films, composite films, layer-by-layer

Spintronics offer breakthroughs over conventional memory/logic devices with lower power, leakage, saturation, and complexity.

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service