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ChemicalBook >> CAS DataBase List >>2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE

CAS No.
2370-88-9
Chemical Name:
2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
Synonyms
H-4;H4R;D4H;HH4R;TMCTS;SP9144;GPRv53;Tetramethylcyclotetrasiloxane;cyclic tetramethyltetrasiloxane;1,3,5,7-Cyclotetra(methylsiloxane)
CBNumber:
CB1453337
Molecular Formula:
C4H16O4Si4
Formula Weight:
240.51
MOL File:
2370-88-9.mol

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Properties

Melting point
−69 °C(lit.)
Boiling point
134 °C(lit.)
Density
0.986 g/mL at 25 °C(lit.)
refractive index
n20/D 1.387(lit.)
Flash point
76 °F
storage temp.
2-8°C
form
liquid
Specific Gravity
0.991
Water Solubility
Miscible with most organic solvents. Immiscible with water.
Hydrolytic Sensitivity
3: reacts with aqueous base
Sensitive
Moisture Sensitive
BRN
1787074
InChIKey
BQYPERTZJDZBIR-UHFFFAOYSA-N
CAS DataBase Reference
2370-88-9(CAS DataBase Reference)
EPA Substance Registry System

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS02,GHS07
Signal word  Warning
Hazard statements  H319-H226
Precautionary statements  P280a-P305+P351+P338-P501a-P210-P233-P240-P241+P242+P243-P264-P280-P303+P361+P353-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501
Hazard Codes  Xi
Risk Statements  10-36
Safety Statements  16-26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  3
F  10-21
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29319090

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 512990 2,4,6,8-Tetramethylcyclotetrasiloxane ≥98.5%, ≥99.999% trace metals basis 2370-88-9 25ml $203 2021-12-16 Buy
Sigma-Aldrich 512990 2,4,6,8-Tetramethylcyclotetrasiloxane ≥98.5%, ≥99.999% trace metals basis 2370-88-9 100ml $521 2021-12-16 Buy
TCI Chemical T2076 2,4,6,8-Tetramethylcyclotetrasiloxane >95.0%(GC) 2370-88-9 5g $28 2022-04-27 Buy
TCI Chemical T2076 2,4,6,8-Tetramethylcyclotetrasiloxane >95.0%(GC) 2370-88-9 25g $91 2022-04-27 Buy
Alfa Aesar L16642 2,4,6,8-Tetramethylcyclotetrasiloxane, 99% 2370-88-9 25g $137 2022-04-27 Buy
Product number Packaging Price Buy
512990 25ml $203 Buy
512990 100ml $521 Buy
T2076 5g $28 Buy
T2076 25g $91 Buy
L16642 25g $137 Buy

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Chemical Properties,Uses,Production

Description

2, 4, 6, 8-TETRAMETHYLCYCLOTETRASILOXANE can be used as the precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, and gate dielectrics in thin-film transistors (TFT) (for example, for the preparation of ultralow dielectric constant pSiCOH film), and is a component of photochemically formed SiOX monolayers on TiO. It is a good impregnant of photoelectric material. It can be used for the manufacturing of modified siloxane with defined hydrogen content and chain quality.

Chemical Properties

Colorless or yellowish transparent liquid

Uses

2,4,6,8-Tetramethylcyclotetrasiloxane can occur addition reaction with unsaturated alkenes, so it’s utilized widely to synthesize variety functional reactive silicone fluids which is used to form silicone block copolymer, or used as crosslinker of vinyl addition silicone rubber. Tetramethyl-cyclotetrasiloxane is a good impregnant of photoelectric material. It is used to manufacture of modified siloxane with defined hydrogen content and chain quantity. It is also used in production of silicone polymers and acts as a precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics and semiconductors.

Uses

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

General Description

Atomic number of base material: 14 Silicon

References

http://www.alfa.com/zh-cn/catalog/L16642/
http://www.sigmaaldrich.com/catalog/product/aldrich/512990?lang=en&region=US
Grill, A., and V. Patel. "Ultralow dielectric constant pSiCOH films prepared with tetramethylcyclotetrasiloxane as skeleton precursor." Journal of Applied Physics 104.2(2008):107.
Zhang, Jianming, D. S. Wavhal, and E. R. Fisher. "Mechanisms of SiO2 film deposition from tetramethylcyclotetrasiloxane, dimethyldimethoxysilane, and trimethylsilane plasmas." Journal of Vacuum Science & Technology A Vacuum Surfaces & Films 22.1(2004):201-213.
Fujino, Katsuhiro, et al. "Low-Temperature Atmospheric-Pressure Chemical Vapor Deposition, Using 2, 4, 6, 8-Tetramethylcyclotetrasiloxane and Ozone." Japanese Journal of Applied Physics 33. 4A (1994):2019-2024.

75-54-7
7732-18-5
2370-88-9
6166-86-5
6166-87-6
Synthesis of 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE from Dichloromethylsilane and Water
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View Lastest Price from 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2022-03-16 2,4,6,8-Tetramethylcyclotetrasiloxane
2370-88-9
 US $1.00 / kg 1kg 99% 10tons Henan Guange Biotechnology Co. LTD
2022-02-25 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
2370-88-9
 US $10.00 / KG 1KG 99% 5000kg/month Shanxi Naipu Import and Export Co.,Ltd
2021-10-15 1,3,5,7-tetramethylcyclotetrasiloxane
2370-88-9
 US $0.00 / Kg/Bag 1Kg/Bag 99% 20ton Hebei Mojin Biotechnology Co., Ltd
2,4,6,8-tetramethylcyclotetrasiloxane,mixtureofisomers   2,4,6,8-tetramethyl-1,3,5,7,2λ3,4λ3,6λ3,8λ3-tetraoxatetrasilocane 2,4,6,8-Tetramethylcyclotetrasiloxane(HD4) Cyclotetrasiloxane, 2,4,6,8-tetramethyl- Tetramethylcyclotetrasiloxane 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE, 9 9.5+% 1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE (2% CHLOROSILANE STABILIZED) 1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE 95+% 2,4,6,8-Tetramethylcyclotetrasiloxane, 95%, mixture of isomers 1,3,5,7-Tetramethyl-2,4,6,8-tetraoxa-1,3,5,7-tetrasilacyclooctane 2,4,6,8-Tetramethylcyclooctanetetrasiloxane 2,4,6,8-Tetramethylcyclooctatetrasiloxane H-4 2,4,6,8-Tetramethylcyclotetrasiloxane,95% 1,3,5,7-Cyclotetra(methylsiloxane) SP9144 Anti-HRH4 (N-terminal) antibody produced in rabbit GPRv53 H4R HH4R 1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE 99+% (D4H) 1,3,5,7-tetraMethylcyclotetrasiloxane 2,4,6,8-TetraMethylcyclotetrasiloxane 1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE cyclic tetramethyltetrasiloxane 2,4,6,8-Tetramethylcyclotetrasiloxane Liquid TMCTS 1,2,5,7-Tetramethylcyclotetrasiloxane   2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane 2,4,6,8-tetramethyl-cyclotetrasiloxan  D4H 1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE, 99.0% 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE fandachem 2370-88-9 C4H16O4Si4 C4H18O4Si4 HSiCH3O4 Organosilicon Organometallic Reagents Siloxanes Siloxanes