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56-33-7

Name 1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE
CAS 56-33-7
EINECS(EC#) 200-265-4
Molecular Formula C16H22OSi2
MDL Number MFCD00039793
Molecular Weight 286.52
MOL File 56-33-7.mol
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Chemical Properties

Appearance Colorless or yellowish transparent liquid
Melting point  -89°C
Boiling point  155 °C
density  0.976
refractive index  1.52
Fp  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 Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RTECS  JM9236000
TSCA  Yes
HS Code  29319090
Safety Profile
Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

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