1,3-Dichlorotetramethyldisiloxane, 96%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11372306	Thermo Scientific Alfa Aesar L05964.06	5 g
11382306	Thermo Scientific Alfa Aesar L05964.14	25 g

Description

1,3-Dichlorotetramethyldisiloxane is used to produce 1,1,3,3-tetramethyl-disiloxane-1,3-diol. It is also used as Chemical Additives. Pharmaceutical intermediates.

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
1,3-Dichlorotetramethyldisiloxane is used to produce 1,1,3,3-tetramethyl-disiloxane-1,3-diol. It is also used as Chemical Additives. Pharmaceutical intermediates.

Solubility
Reacts with water.

Notes
Moisture Sensitive. Store away from strong bases and water. Protect from water and humidity. Incompatible with acids, bases and oxidizing agents. Avoid excessive heat and light.

Chemical Identifiers

• CAS: 2401-73-2
• Molecular Weight (g/mol): 203.209
• InChI Key: DMEXFOUCEOWRGD-UHFFFAOYSA-N
• PubChem CID: 75461
• SMILES: C[Si](C)(O[Si](C)(C)Cl)Cl

• Molecular Formula: C4H12Cl2OSi2
• MDL Number: MFCD00018088
• Synonym: 1,3-dichloro-1,1,3,3-tetramethyldisiloxane, 1,3-dichlorotetramethyldisiloxane, disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl, chloro chlorodimethylsilyl oxy dimethylsilane, 1,1,3,3-tetramethyl-1,3-dichlorodisiloxane, acmc-209g7w, oxybis chlorodimethylsilane, sym-dichlorotetramethyldisiloxane, dmexfouceowrgd-uhfffaoysa, 1,3-dichlorotetramethyl disiloxane
• IUPAC Name: chloro-[chloro(dimethyl)silyl]oxy-dimethylsilane

Specifications

• Boiling Point: 136°C to 138°C
• CAS: 2401-73-2
• MDL Number: MFCD00018088
• Beilstein: 1741218
• Synonym: 1,3-dichloro-1,1,3,3-tetramethyldisiloxane, 1,3-dichlorotetramethyldisiloxane, disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl, chloro chlorodimethylsilyl oxy dimethylsilane, 1,1,3,3-tetramethyl-1,3-dichlorodisiloxane, acmc-209g7w, oxybis chlorodimethylsilane, sym-dichlorotetramethyldisiloxane, dmexfouceowrgd-uhfffaoysa, 1,3-dichlorotetramethyl disiloxane
• SMILES: C[Si](C)(O[Si](C)(C)Cl)Cl
• Molecular Weight (g/mol): 203.209
• Formula Weight: 203.22
• Chemical Name or Material: 1,3-Dichlorotetramethyldisiloxane

• Melting Point: -37°C
• Molecular Formula: C4H12Cl2OSi2
• UN Number: UN2985
• Flash Point: 15°C (59°F)
• InChI Key: DMEXFOUCEOWRGD-UHFFFAOYSA-N
• IUPAC Name: chloro-[chloro(dimethyl)silyl]oxy-dimethylsilane
• PubChem CID: 75461
• Percent Purity: 96%

Safety and Handling

GHS H Statement
H225-H314-H318
Highly flammable liquid and vapor.
Causes severe skin burns and eye damage.
Causes serious eye damage.

GHS P Statement
P210-P260-P303+P361+P353-P305+P351+P338-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Danger

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RUO – Research Use Only