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CAS 546-56-5

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Octaphenylcyclotetrasiloxane

Description:
Octaphenylcyclotetrasiloxane, with the CAS number 546-56-5, is a cyclic siloxane compound characterized by its unique structure, which consists of a siloxane ring with phenyl groups attached to each silicon atom. This compound is known for its high thermal stability, low viscosity, and excellent dielectric properties, making it useful in various applications, including as a dielectric fluid in electronics and as a lubricant in high-temperature environments. Additionally, it exhibits low surface tension and good chemical resistance, which enhances its utility in coatings and sealants. Octaphenylcyclotetrasiloxane is also notable for its potential environmental impact, as it can persist in the environment and bioaccumulate, raising concerns regarding its ecological effects. Its synthesis typically involves the polymerization of siloxanes, and it can be analyzed using techniques such as gas chromatography and mass spectrometry. Overall, this compound's unique properties make it valuable in specialized industrial applications, while also necessitating careful consideration of its environmental implications.
Formula:C48H40O4Si4
InChI:InChI=1S/C48H40O4Si4/c1-9-25-41(26-10-1)53(42-27-11-2-12-28-42)49-54(43-29-13-3-14-30-43,44-31-15-4-16-32-44)51-56(47-37-21-7-22-38-47,48-39-23-8-24-40-48)52-55(50-53,45-33-17-5-18-34-45)46-35-19-6-20-36-46/h1-40H
InChI key:InChIKey=VSIKJPJINIDELZ-UHFFFAOYSA-N
SMILES:[Si]1(O[Si](O[Si](O[Si](O1)(C2=CC=CC=C2)C3=CC=CC=C3)(C4=CC=CC=C4)C5=CC=CC=C5)(C6=CC=CC=C6)C7=CC=CC=C7)(C8=CC=CC=C8)C9=CC=CC=C9
Synonyms:
  • 1,1,3,3,5,5,7,7-Octaphenylcyclotetrasiloxane
  • 2,2,4,4,6,6,8,8-Octakis-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
  • 2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7,2,4,6,8-Tetroxatetrasilocane
  • 2,2,4,4,6,6,8,8-Octaphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
  • 2,2,4,4,6,6,8,8-Octaphenylcyclotetrasiloxane
  • Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octaphenyl-
  • Cyclotetrasiloxane, octaphenyl-
  • F 491
  • Ls 8980
  • Nsc 293057
  • See more synonyms
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