CAS 2370-88-9 2,4,6,8-Tetramethylcyclotetrasiloxane

NAVIGATION

2,4,6,8-Tetramethylcyclotetrasiloxane

PRICE INQUIRY

Catalog Number

ACM2370889

CAS Number

2370-88-9

Product Name

2,4,6,8-Tetramethylcyclotetrasiloxane

Structure

Category

Salt; Vapor Deposition Precursors

Synonyms

1,2,5,7-Tetramethylcyclotetrasiloxane

Description

Atomic number of base material: 14 Silicon

Molecular Weight

236.48

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

76 °F

Purity

95%+

Density

0.986 g/mL at 25 °C (lit.)

Solubility

Miscible with most organic solvents

Appearance

Colorless 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

2-8 °C

Assay

≥99.5% (GC)

Complexity

Covalently-Bonded Unit Count

EC Number

219-137-4

Exact Mass

235.981265

Form

liquid

Formal Charge

Hazard Statements

H319 : Causes serious eye irritation.
H226 : Flammable liquid and vapour.

Heavy Atom Count

MDL Number

MFCD00039567

Monoisotopic Mass

235.981265

Odor

Ether-like odor

Packaging

25 g

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.

Properties

Liquid

Refractive Index

1.387

Rotatable Bond Count

Signal Word

Warning

Specific Gravity

0.99

Topological Polar Surface Area

36.9 Å²

MSDS