2,4,6,8-Tetramethylcyclotetrasiloxane

Catalog Number	ACM2370889-2
CAS Number	2370-88-9
Structure
Description	Atomic number of base material: 14 Silicon
Synonyms	1,3,5,7-Tetramethylcyclotetrasiloxane, TMCTS, 1,2,5,7-Tetramethylcyclotetrasiloxane, 1,3,5,7-Cyclotetra(methylsiloxane), 1,3,5,7-Tetrahydrogen-1,3,5,7-tetramethylcyclotetrasiloxane, 2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-Tetroxatetrasilocane, 2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-Tetroxatetrasilocane-2,4,6,8-Tetrayl, 2,4,6,8-Tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
Molecular Weight	240.51
Molecular Formula	C4H16O4Si4
Canonical SMILES	C[Si]1O[Si](O[Si](O[Si](O1)C)C)C
InChI	InChI=1S/C4H12O4Si4/c1-9-5-10(2)7-12(4)8-11(3)6-9/h1-4H3
InChI Key	WZJUBBHODHNQPW-UHFFFAOYSA-N
Boiling Point	134 °C
Melting Point	-69 °C
Flash Point	24 °C
Purity	>95.0%(GC)
Density	0.986 g/mL at 25 °C (lit.)
Solubility	Miscible with most organic solvents
Appearance	Colorless to almost colorless clear liquid
Application	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
Storage	Refrigerated (0-10 °C)
Complexity	99
Exact Mass	235.981265
Formal Charge	0
Heavy Atom Count	12
HS Code	2934999090
MDL Number	MFCD00039567
Monoisotopic Mass	235.981265
Reaxys Registry Number	1775282
Refractive Index	1.387
Rotatable Bond Count	0
Specific Gravity	0.99
Topological Polar Surface Area	36.9 Å²