1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
- CAS NO.：1189-93-1
- Empirical Formula: C6H20O2Si3
- Molecular Weight: 208.48
- MDL number: MFCD00039788
- EINECS: 214-716-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:19
What is 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE?
Chemical properties
clear colorless liquid
The Uses of 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
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.
Properties of 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
| Melting point: | -67°C |
| Boiling point: | 128 °C (lit.) |
| Density | 0.822 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 59 °F |
| storage temp. | Flammables area |
| form | clear liquid |
| Specific Gravity | 0.822 |
| color | Colorless to Almost colorless |
| Water Solubility | Slightly miscible with water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 3: reacts with aqueous base |
| BRN | 1746341 |
| CAS DataBase Reference | 1189-93-1(CAS DataBase Reference) |
| EPA Substance Registry System | Trisiloxane, 1,1,3,3,5,5-hexamethyl- (1189-93-1) |
Safety information for 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
| InChIKey | HZBDPZBVINJJET-UHFFFAOYSA-N |
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