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| CAS No.: | 2116-84-9 |
|---|---|
| Name: | Phenyltris(trimethylsiloxy)silane |
| Molecular Structure: | |
|
|
|
| Formula: | C15H32O3Si4 |
| Molecular Weight: | 372.759 |
| Synonyms: | Trisiloxane,1,1,1,5,5,5-hexamethyl-3-phenyl-3-(trimethylsiloxy)- (6CI,7CI,8CI);1,1,1,5,5,5-Hexamethyl-3-phenyl-3-(trimethylsilyloxy)trisiloxane;Baysilon PD 5;DC 556;Dow 556 Fluid;Dow Corning 556;Dow Corning 556 Fluid;PD 5 silicone;Silicone DC 556;Tris(trimethylsiloxy)phenylsilane; |
| EINECS: | 218-320-6 |
| Density: | 0.93 g/cm3 |
| Melting Point: | -102 °C |
| Boiling Point: | 315.4 °C at 760 mmHg |
| Flash Point: | 128.6 °C |
| Solubility: | 6.6μg/L at 23℃ |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36 |
| PSA: | 27.69000 |
| LogP: | 4.38700 |
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- 75-77-4
chloro-trimethyl-silane
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| With 5%-palladium/activated carbon In ethyl acetate at 20℃; for 12h; | 94% |
| With palladium 10% on activated carbon In ethyl acetate at 20℃; for 9h; Inert atmosphere; | 89 %Spectr. |
| With 10 mol% palladium on carbon In ethyl acetate at 20℃; for 24h; | 89 %Spectr. |
- 13688-55-6
trimethylsilyl acrylate
- 17938-35-1
phenyltriallyloxysilane
A
- 999-55-3
allyl acrylate
B
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| With ammonium trifluoromethanesulfonate; 4-methoxy-phenol at 60℃; for 8h; | A 93.7% B n/a |
- 993-07-7
trimethylsilan
- 98-13-5
Phenyltrichlorosilane
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| Stage #1: trimethylsilan With dihydrogen peroxide In toluene at 20℃; for 1.5h; Stage #2: Phenyltrichlorosilane With triethylamine In toluene for 2h; | 93% |
- 75-77-4
chloro-trimethyl-silane
- 3047-74-3
phenylsilanetriol
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| With pyridine In toluene for 7h; Heating; | 84.6% |
- 34136-85-1
1,1,1-trimethyl-3-phenyl-3,3-difluorodisiloxane
A
- 420-56-4
trimethylsilyl fluoride
B
- 368-47-8
phenyltrifluorosilane
C
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| at 20℃; Further byproducts given; |
- 34136-85-1
1,1,1-trimethyl-3-phenyl-3,3-difluorodisiloxane
A
- 368-47-8
phenyltrifluorosilane
B
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
C
- 34136-84-0
1,1,1,5,5,5-hexamethyl-3-phenyl-3-fluorotrisiloxane
| Conditions | Yield |
|---|---|
| at 20℃; Further byproducts given; |
- 34136-85-1
1,1,1-trimethyl-3-phenyl-3,3-difluorodisiloxane
A
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
B
- 34136-84-0
1,1,1,5,5,5-hexamethyl-3-phenyl-3-fluorotrisiloxane
C
- 34224-10-7
1,1,3,3-tetrafluoro-1,3-diphenyl-1,3-disiloxane
| Conditions | Yield |
|---|---|
| at 20℃; Further byproducts given; |
- 2996-92-1
phenyl trimethylsiloxane
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 68 percent / acetic acid / H2O / 4 h / 5 - 10 °C 2: 84.6 percent / pyridine / toluene / 7 h / Heating View Scheme |
- 18027-10-6
sodium trimethylsilanolate
- 98-13-5
Phenyltrichlorosilane
- 2116-84-9
1,1,5,5,5-hexamethyl-3-phenyl-3-[(trimethylsilyl)oxy]trisiloxane
| Conditions | Yield |
|---|---|
| In pyridine | |
| In pyridine |
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Chemistry
IUPAC Name: Trimethyl-[phenyl-bis(trimethylsilyloxy)silyl]oxysilane
Empirical Formula: C15H32O3Si4
Molecular Weight: 372.7548
Freely Rotating Bonds: 7
Polar Surface Area: 27.69 Å2
Index of Refraction: 1.457
Molar Refractivity: 108.66 cm3
Molar Volume: 398.4 cm3
Polarizability: 43.07× 10-24 cm3
Surface Tension: 22.2 dyne/cm
Density: 0.93 g/cm3
Flash Point: 128.6 °C
Enthalpy of Vaporization: 53.44 kJ/mol
Boiling Point: 315.4 °C at 760 mmHg
Vapour Pressure: 0.000812 mmHg at 25°C
The Cas Register Number of Methyl phenyl polysiloxane is 2116-84-9.The chemical synonyms of Methyl phenyl polysiloxane (CAS NO.2116-84-9) are 1,1,5,5,5-Hexamethyl-3-phenyl-3-((trimethylsilyl)oxy)trisiloxane and Trisiloxane, 1,1,1,5,5,5-hexamethyl-3-phenyl-3-((trimethylsilyl)oxy)- .The molecular structure of Methyl phenyl polysiloxane (CAS NO.2116-84-9) is
.bmp)
.
Uses
Methyl phenyl polysiloxane (CAS NO.2116-84-9) is used as pharmaceutical intermediate.
Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36: Wear suitable protective clothing.
WGK Germany: 1
F: 10-21
TSCA: Yes