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74815 Sigma-Aldrich

Octamethyltrisiloxane

purum, ≥97.0% (GC)

  • CAS Number 107-51-7

  • Linear Formula [(CH3)3SiO]2Si(CH3)2

  • Molecular Weight 236.53

  •  Beilstein Registry Number 1753063

  •  EC Number 203-497-4

  •  MDL number MFCD00008264

  •  PubChem Substance ID 24886729

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Properties

vapor density   >1 (vs air)
InChI Key   CXQXSVUQTKDNFP-UHFFFAOYSA-N
grade   purum
assay   ≥97.0% (GC)
refractive index   n20/D 1.384(lit.)
  n20/D 1.385
bp   153 °C(lit.)
mp   −82 °C (lit.)
density   0.82 g/mL at 25 °C(lit.)
Safety & Documentation

Safety Information

Symbol 
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
UN 1993C 3 / PGIII
WGK Germany 
3
Flash Point(F) 
84.2 °F
Flash Point(C) 
29 °C
Protocols & Articles
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