1,3,5,7-Tetramethylcyclotetrasiloxane
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1,3,5,7-Tetramethylcyclotetrasiloxane
structure -
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CAS No:
2370-88-9
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Formula:
C4H16O4Si4
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Chemical Name:
1,3,5,7-Tetramethylcyclotetrasiloxane
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Synonyms:
Cyclotetrasiloxane,2,4,6,8-tetramethyl-;2,4,6,8-Tetramethylcyclotetrasiloxane;Tetramethylcyclotetrasiloxane;1,3,5,7-Tetramethylcyclotetrasiloxane;LS 8600;KF 9902;Hydrosilox;SIT 7530.0;1,3,5,7-Tetrahydrogen-1,3,5,7-tetramethylcyclotetrasiloxane;1,3,5,7-Cyclotetra(methylsiloxane);D 4H;D4H;2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane;121904-05-0
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CAS No:
Characteristics
36.92000
-0.53240
Liquid
0.991 g/cm3
-65 °C
134.5 °C
24ºC
1.387
Miscible with most organic solvents. Immiscible with water.
Flammables area
Safety Information
III
3
UN 1993
3
R10; R36
16-26-36
Xi
P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, P501
H226
1,3,5,7-Tetramethylcyclotetrasiloxane Use and Manufacturing
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.
Computed Properties
Molecular Weight:240.51
Hydrogen Bond Acceptor Count:4
Exact Mass:240.01256513
Monoisotopic Mass:240.01256513
Topological Polar Surface Area:36.9
Heavy Atom Count:12
Complexity:99
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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1,3,5,7-Tetramethylcyclotetrasiloxane
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