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1,1,3,3,5,5-Hexamethyltrisiloxane, 95%

CAS: 1189-93-1 | C6H18O2Si3 | 206.463 g/mol

$321.29 - $321.29

Chemical Identifiers

CAS 1189-93-1
Molecular Formula C6H18O2Si3
Molecular Weight (g/mol) 206.463
MDL Number MFCD00039788
InChI Key YTEISYFNYGDBRV-UHFFFAOYSA-N
Synonym 1,1,3,3,5,5-hexamethyltrisiloxane, trisiloxane, 1,1,3,3,5,5-hexamethyl, 1,3,3,5,5-hexamethyltrisiloxane, 2,4,4,6-tetramethyl-3,5-dioxa-2,4,6-trisilaheptane, dimethylbis dimethylsilyloxy silane
PubChem CID 6327152
IUPAC Name [(dimethyl-$l^{3}-silanyl)oxy-dimethylsilyl]oxy-dimethylsilicon
SMILES C[Si](C)O[Si](C)(C)O[Si](C)C
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Catalog Number Mfr. No. Quantity Price Quantity  
AAL1652022
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Thermo Scientific Chemicals
L1652022
100 g
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Description

Description

1,1,3,3,5,5-Hexamethyltrisiloxane is involved in the preparation of 2-bis(3-allyl-4-hydroxyphenyl)hexafluoropropane, which is associated with inorganic siloxane polymer and used as a coating material for the detection of toxic chemical warfare agents. It is also used as a silylating agent and to prepare 1,5-Bis[2-(1,2-epoxycyclohex-4-yl)ethyl]-1,1,3,3,5,5-hexamethyltrisiloxane from 4-vinyl-1-cyclohexene-1,2-epoxide by hydrosilylation.

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
1,1,3,3,5,5-Hexamethyltrisiloxane is involved in the preparation of 2-bis(3-allyl-4-hydroxyphenyl)hexafluoropropane, which is associated with inorganic siloxane polymer and used as a coating material for the detection of toxic chemical warfare agents. It is also used as a silylating agent and to prepare 1,5-Bis[2-(1,2-epoxycyclohex-4-yl)ethyl]-1,1,3,3,5,5-hexamethyltrisiloxane from 4-vinyl-1-cyclohexene-1,2-epoxide by hydrosilylation.

Solubility
Slightly miscible with water.

Notes
Incompatible with strong oxidizing agents and strong acids.
Specifications

Chemical Identifiers

1189-93-1
206.463
YTEISYFNYGDBRV-UHFFFAOYSA-N
6327152
C[Si](C)O[Si](C)(C)O[Si](C)C
C6H18O2Si3
MFCD00039788
1,1,3,3,5,5-hexamethyltrisiloxane, trisiloxane, 1,1,3,3,5,5-hexamethyl, 1,3,3,5,5-hexamethyltrisiloxane, 2,4,4,6-tetramethyl-3,5-dioxa-2,4,6-trisilaheptane, dimethylbis dimethylsilyloxy silane
[(dimethyl-$l^{3}-silanyl)oxy-dimethylsilyl]oxy-dimethylsilicon

Specifications

128°C
1189-93-1
C6H18O2Si3
UN1993
20°C (68°F)
Slightly miscible with water.
C[Si](C)O[Si](C)(C)O[Si](C)C
206.463
208.48
1.381
0.822
-67°C
100 g
MFCD00039788
1746341
1,1,3,3,5,5-hexamethyltrisiloxane, trisiloxane, 1,1,3,3,5,5-hexamethyl, 1,3,3,5,5-hexamethyltrisiloxane, 2,4,4,6-tetramethyl-3,5-dioxa-2,4,6-trisilaheptane, dimethylbis dimethylsilyloxy silane
YTEISYFNYGDBRV-UHFFFAOYSA-N
[(dimethyl-$l^{3}-silanyl)oxy-dimethylsilyl]oxy-dimethylsilicon
6327152
97%
Moisture sensitive
1,1,3,3,5,5-Hexamethyltrisiloxane
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Safety and Handling

Safety and Handling

GHS H Statement
H225
Highly flammable liquid and vapor.

P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378q-P501c

H225

DOTInformation : Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.

EINECSNumber : 214-716-8

TSCA : Yes

Recommended Storage : Ambient temperatures

SDS
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RUO – Research Use Only