Pentamethylacetoxydisiloxane

Modify Date: 2025-09-28 22:56:00

Pentamethylacetoxydisiloxane Structure
Pentamethylacetoxydisiloxane structure
Common Name Pentamethylacetoxydisiloxane
CAS Number 70693-47-9 Molecular Weight 206.387
Density 0.9±0.1 g/cm3 Boiling Point 149.4±7.0 °C at 760 mmHg
Molecular Formula C7H18O3Si2 Melting Point N/A
MSDS N/A Flash Point 36.9±13.7 °C

 Names

Name [dimethyl(trimethylsilyloxy)silyl] acetate
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 149.4±7.0 °C at 760 mmHg
Molecular Formula C7H18O3Si2
Molecular Weight 206.387
Flash Point 36.9±13.7 °C
Exact Mass 206.079453
PSA 35.53000
LogP 3.02
Vapour Pressure 4.0±0.3 mmHg at 25°C
Index of Refraction 1.407
InChIKey QSPUKCHZOMPBLM-UHFFFAOYSA-N
SMILES CC(=O)O[Si](C)(C)O[Si](C)(C)C

 Safety Information

Hazard Codes C
Risk Phrases 10-34
Safety Phrases 26-36/37/39-45
RIDADR UN 2924 3/PG 3
HS Code 2915390090

 Customs

HS Code 2915390090
Summary 2915390090. esters of acetic acid. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:5.5%. General tariff:30.0%

 Synonyms

1,1,1,3,3-PENTAMETHYL-3-ACETOXYDISILOXANE
acetoxypentamethyldisiloxane
Disiloxan-1-ol, 1,1,3,3,3-pentamethyl-, acetate
Disiloxanol, pentamethyl-, acetate
EINECS 274-767-7
Disiloxanol,pentamethyl-,acetate
1-acetoxypentamethyldisiloxane
Acetyloxypentamethyldisiloxan
Pentamethyldisiloxanyl acetate
Pentamethylacetoxydisiloxane
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