2,4,6,8-Tetramethylcyclotetrasiloxane
Catalog Number
ACM2370889
CAS
2370-88-9
Synonyms
1,2,5,7-Tetramethylcyclotetrasiloxane
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
Molecular Weight
236.48
Molecular Formula
C4H16O4Si4
Product Information
Description
Atomic number of base material: 14 Silicon
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
76 °F
Purity
95%+
Density
0.986 g/mL at 25 °C (lit.)
Solubility
Miscible with most organic solvents
Appearance
Colorless liquid
Storage
2-8 °C
Complexity
99
Covalently-Bonded Unit Count
1
Exact Mass
235.981265
Hazard Statements
H319 : Causes serious eye irritation.
H226 : Flammable liquid and vapour.
H226 : Flammable liquid and vapour.
Heavy Atom Count
12
MDL Number
MFCD00039567
Monoisotopic Mass
235.981265
Odor
Ether-like odor
Precautionary Statements
P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P403 + P235 : Store in a well-ventilated place. Keep cool.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P403 + P235 : Store in a well-ventilated place. Keep cool.
Reaxys Registry Number
1775282
Refractive Index
1.387
Rotatable Bond Count
0
Signal Word
Warning
Specific Gravity
0.99
Topological Polar Surface Area
36.9 Ų
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