| | Identification | Back Directory |  | [Name] 
 1,1,3,3-TETRAPHENYL-1,3-DIMETHYLDISILOXANE
 |  | [CAS] 
 807-28-3
 |  | [Synonyms] 
 T 2078
 Tetraphenyldimethyldisiloxane
 Bis(methyldiphenylsilyl) oxide
 1,1,3,3-TETRAPHENYLDIMETHYLDISILOXANE
 1,3-DIMETHYL-1,1,3,3-TETRAPHENYLDISILOXANE
 1,3-dimethyl-1,1,3,3-tetraphenyl-disiloxan
 1,1,3,3-TETRAPHENYL-1,3-DIMETHYLDISILOXANE
 Disiloxane, 1,3-dimethyl-1,1,3,3-tetraphenyl-
 1,3-Dimethyl-1,1,3,3-tetraphenylpropanedisiloxane
 Dimethyltetraphenylsiloxane. 1,3-Dimethyl-1,1,3,3-tetraphenyl-disiloxane
 |  | [EINECS(EC#)] 
 212-361-3
 |  | [Molecular Formula] 
 C26H26OSi2
 |  | [MDL Number] 
 MFCD00053660
 |  | [MOL File] 
 807-28-3.mol
 |  | [Molecular Weight] 
 410.66
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 Colorless  or  yellowish  transparent  liquid
 |  | [Melting point ] 
 46-49 °C
 
 |  | [Boiling point ] 
 215 °C
 |  | [density ] 
 1.076
 |  | [refractive index ] 
 1.598
 |  | [Fp ] 
 193°C
 |  | [form ] 
 solid
 |  | [Specific Gravity] 
 1.076
 |  | [Hydrolytic Sensitivity] 
 4: no reaction with water under neutral conditions
 |  | [InChI] 
 InChI=1S/C26H26OSi2/c1-28(23-15-7-3-8-16-23,24-17-9-4-10-18-24)27-29(2,25-19-11-5-12-20-25)26-21-13-6-14-22-26/h3-22H,1-2H3
 |  | [InChIKey] 
 RFGGTTPASBFBTB-UHFFFAOYSA-N
 |  | [SMILES] 
 [Si](C)(C1=CC=CC=C1)(C1=CC=CC=C1)O[Si](C)(C1=CC=CC=C1)C1=CC=CC=C1
 |  | [EPA Substance Registry System] 
 Disiloxane, 1,3-dimethyl-1,1,3,3-tetraphenyl- (807-28-3)
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 Colorless  or  yellowish  transparent  liquid
 |  | [Toxics Screening Level] 
 The ITSL for tetraphenyldimethyldisiloxane is 0.1 μg/m3 based on an annual averaging time.
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