1,1,3,3-Tetramethyl-1,3-Diphenyldisiloxane(CAS 56-33-7)
| Purity | Grade | Package | Stock | Price | Quantity |
| 97% | RG | 1G | In Stock | 4 USD
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| 97% | RG | 5G | In Stock | 10 USD
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| 97% | RG | 25G | In Stock | 28 USD
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| 97% | RG | 100G | In Stock | 103 USD
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| 97% | RG | 500G | In Stock | 789 USD
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Applications of 56-33-7
| Industry | Application | Process |
|---|---|---|
| Organosilicon Materials | Capping agent for silicone oils and silicone rubbers | Added in the late stage of polymerization to control molecular weight and cap terminal groups via cleavage and recombination of Si–O–Si bonds |
| Organosilicon Materials | Crosslinking modifier for organosilicon resins | Used as an active diluent or chain terminator to regulate crosslink density and curing performance |
| Pharmaceutical Intermediates | Structural building block for synthesizing silicon-containing drug carriers or prodrugs | Introduced into phenyl-methyl siloxane frameworks via hydrolysis/condensation to enhance lipophilicity and metabolic stability |
| Electronic Chemicals | Rheology modifier for LED-encapsulating silicone gels | Reduced system viscosity and suppressed bubble formation at low addition levels (0.1–0.5 wt%) |
| Coatings and Inks | Adhesion promoter for high-performance heat-resistant coatings | Reacted with surface hydroxyl groups on metal oxides to form Si–O–M bonds, thereby enhancing interfacial adhesion |
Physical and chemical properties of 56-33-7
Boiling Point |
314.4±9.0 °C at 760 mmHg |
|---|---|
Density |
1.0±0.1 g/cm3 |
Exact Mass |
286.120911 |
Flash Point |
118.2±19.1 °C |
Index of Refraction |
1.520 |
LogP |
6.46 |
Melting Point |
-89°C |
Molecular Formula |
C16H22OSi2 |
Molecular Weight |
286.516 |
PSA |
9.23000 |
Storage condition |
2~8°C |
Vapour Pressure |
0.000202 [mmHg] |
λmax |
259nm(Cyclohexane)(lit.) |
Spectrums of 56-33-7
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Cas:1825-58-7
Cas:791-31-1
Cas:1145-98-8
Q&A for CAS 56-33-7
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Download SDS of 56-33-7
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 56-33-7
Operate under the ISO 9001 system
