1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane
- CAS NO.：56-33-7
- Empirical Formula: C16H22OSi2
- Molecular Weight: 286.52
- MDL number: MFCD00039793
- EINECS: 200-265-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:02:49
What is 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane?
Chemical properties
Colorless or yellowish transparent liquid
Definition
ChEBI: 1,3-diphenyltetramethyldisiloxane is an organosiloxane.
Safety Profile
Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.
Properties of 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane
| Melting point: | -89°C |
| Boiling point: | 155 °C |
| Density | 0.976 |
| refractive index | 1.52 |
| Flash point: | 156°C |
| storage temp. | 2-8°C |
| form | liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.976 |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| λmax | 259nm(Cyclohexane)(lit.) |
| CAS DataBase Reference | 56-33-7(CAS DataBase Reference) |
| EPA Substance Registry System | Disiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl- (56-33-7) |
Safety information for 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane
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