Bis(trimethylsiloxy)methylsilane, 97%

Description

CAS: 1873-88-7 | C7H21O2Si3 | 221.498 g/mol

Bis(trimethylsiloxy)methylsilane is an important raw material and intermediate used in organic synthesis, pharmaceutical and dyestuff.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Bis(trimethylsiloxy)methylsilane is an important raw material and intermediate used in organic synthesis, pharmaceutical and dyestuff.

Solubility
Miscible with acetone, ethanol, diethyl ether. Insoluble in water.

Notes
Incompatible with oxidizing agents. Store in a cool, dry conditions in a well sealed container. Store at room temperature.

Specifications

Chemical Identifiers

• CAS: 1873-88-7
• Molecular Formula: C7H21O2Si3
• Molecular Weight (g/mol): 221.498
• MDL Number: MFCD00048000
• InChI Key: SWGZAKPJNWCPRY-UHFFFAOYSA-N
• Synonym: 1,1,1,3,5,5,5-heptamethyltrisiloxane, bis trimethylsiloxy methylsilane, unii-rvy9659r8c, trisiloxane, 1,1,1,3,5,5,5-heptamethyl, methyl-bis trimethylsilyloxy silicon, dsstox_cid_18795, methicone 20 cst, unii-6777u11mkt, methylpolysilicone, xiameter mhx-1107 fluid 20 cst
• PubChem CID: 6327366
• IUPAC Name: methyl-bis(trimethylsilyloxy)silicon
• SMILES: C[Si](O[Si](C)(C)C)O[Si](C)(C)C

• Boiling Point: 142°C
• Quantity: 50 mL
• Linear Formula: [(CH₃)₃SiO]₂SiHCH₃
• UN Number: UN1993
• Beilstein: 1748455
• Flash Point: 22°C (72°F)
• Solubility Information: Miscible with acetone,ethanol,diethyl ether. Insoluble in water.
• Formula Weight: 222.51
• Percent Purity: 97%
• Refractive Index: 1.382
• Density: 0.819
• Chemical Name or Material: Bis(trimethylsiloxy)methylsilane

Safety and Handling

Hazard Category	H225
Hazard Statement	GHS H Statement H225-H315-H319-H335 Highly flammable liquid and vapor. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.
EINECSNumber	217-496-1
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only