1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane

Names

[ Name ]:
1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane

[Synonym ]:
Dow Corning 555
UNII-HE7ABK56N5
1,1,3,5,5-pentaphenyl-1,3,5-trimethyltrisiloxane
EINECS 222-222-9
Si1.Si2.Si3-Trimethyl-Si1.Si1.Si2.Si3.Si3-pentaphenyl-trisiloxan
Trisiloxane,1,3,5-trimethyl-1,1,3,5,5-pentaphenyl
MFCD00053659
Trisiloxane, 1,3,5-trimethyl-1,1,3,5,5-pentaphenyl-
1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
Benzene, 1,1',1'',1''',1''''-(1,3,5-trimethyl-3-trisiloxanyl-1,5-diylidene)pentakis-
1,3,5-Trimethyl-1,1,3,5,5-tetraphenyl-trisiloxan
trimethyl pentaphenyl trisiloxane
Dow Corning 705
1.3.5-Trimethyl-1.1.3.5.5-pentaphenyl-trisiloxan

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
560.2±33.0 °C at 760 mmHg

[ Melting Point ]:
-25°C

[ Molecular Formula ]:
C₃₃H₃₄O₂Si₃

[ Molecular Weight ]:
546.878

[ Flash Point ]:
238.3±25.8 °C

[ Exact Mass ]:
546.186646

[ PSA ]:
18.46000

[ LogP ]:
13.50

[ Vapour Pressure ]:
0.0±1.5 mmHg at 25°C

[ Index of Refraction ]:
1.600

[ Storage condition ]:
2~8℃，Seal

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R36

[ Safety Phrases ]:
26-36-39

[ RIDADR ]:
UN 2810

[ WGK Germany ]:
3

[ Packaging Group ]:
III

[ Hazard Class ]:
6.1

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%