CAS 5256-79-1: Octaphenylsilsesquioxane
Description:Octaphenylsilsesquioxane, with the CAS number 5256-79-1, is a silsesquioxane compound characterized by its unique three-dimensional cage-like structure composed of silicon and oxygen atoms, with phenyl groups attached to the silicon atoms. This compound exhibits notable thermal stability and mechanical strength, making it suitable for various applications in materials science and nanotechnology. Its hydrophobic nature and low surface energy contribute to its utility in coatings and as a filler in polymer matrices. Additionally, octaphenylsilsesquioxane demonstrates excellent electrical insulating properties, which can be advantageous in electronic applications. The compound's ability to form stable films and its compatibility with other materials enhance its potential in advanced composite materials and nanostructured devices. Furthermore, its unique optical properties can be exploited in photonic applications. Overall, octaphenylsilsesquioxane is a versatile compound with significant implications in various fields, including electronics, coatings, and nanotechnology.
Formula:C48H40O12Si8
InChI:InChI=1S/C48H40O12Si8/c1-9-25-41(26-10-1)61-49-62(42-27-11-2-12-28-42)52-65(45-33-17-5-18-34-45)54-63(50-61,43-29-13-3-14-30-43)56-67(47-37-21-7-22-38-47)57-64(51-61,44-31-15-4-16-32-44)55-66(53-62,46-35-19-6-20-36-46)59-68(58-65,60-67)48-39-23-8-24-40-48/h1-40H
InChI key:InChIKey=KBXJHRABGYYAFC-UHFFFAOYSA-N
SMILES:O1[Si]2(O[Si]3(O[Si]4(O[Si]1(O[Si]5(O[Si](O2)(O[Si](O3)(O[Si](O4)(O5)C=6C=CC=CC6)C=7C=CC=CC7)C=8C=CC=CC8)C=9C=CC=CC9)C=%10C=CC=CC%10)C=%11C=CC=CC%11)C=%12C=CC=CC%12)C=%13C=CC=CC%13
- Synonyms:
- 1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.1<sup>3,9</sup>.1<sup>5,15</sup>.1<sup>7,13</sup>]octasiloxane
- 1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.1~3,9~.1~5,15~.1~7,13~]Octasiloxane
- Carbon Monoxide
- Cyclopenta-1,3-Diene
- Diiodorhodium
- Molecular Silicas MS 0840
- Ms 0840
- OctaPhenyl POSS
- Octakis(phenyl)silsesquioxane
- Octakisphenyl POSS
- See more synonyms
- Octaphenyl-t8-silsesquioxane
- Octaphenylhexacyclooctasiloxane
- Octaphenyloctasilsesquioxane
- Octasilsesquioxane, octaphenyl-
- PSS-Octaphenyl substituted
- Pentacyclo[9.5.1.1<sup>3,9</sup>.1<sup>5,15</sup>.1<sup>7,13</sup>]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-
- Pentacyclo[9.5.1.1<sup>3,9</sup>.1<sup>5,15</sup>.1<sup>7,13</sup>]octasiloxane, octaphenyl-
- Phenyl-T8
- Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octaphenyl-
- 1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane
- Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | Octaphenyloctasilsesquioxane REF: 3B-O0349CAS: 5256-79-1 | - - - | 119.00 €~586.00 € | Mon 07 Apr 25 |
![]() | Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octaphenyl- REF: IN-DA00I9ENCAS: 5256-79-1 | 98% | To inquire | Mon 14 Apr 25 |
![]() | Octaphenylsilsesquioxane REF: 54-OR1014538CAS: 5256-79-1 | 98% | 32.00 €~2,007.00 € | Tue 15 Apr 25 |
![]() | Octaphenyloctasilsesquioxane REF: 3D-FO75629CAS: 5256-79-1 | Min. 95% | - - - | Discontinued product |

Octaphenyloctasilsesquioxane
Ref: 3B-O0349
5g | 119.00 € | ||
25g | 586.00 € |

Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octaphenyl-
Ref: IN-DA00I9EN
1g | 32.00 € | ||
5g | 59.00 € | ||
10g | 107.00 € | ||
25g | 146.00 € | ||
100g | 499.00 € |

Ref: 54-OR1014538
1g | 32.00 € | ||
5g | 44.00 € | ||
25g | 167.00 € | ||
100g | 470.00 € | ||
500g | 2,007.00 € |

Octaphenyloctasilsesquioxane
Ref: 3D-FO75629
1kg | Discontinued | Request information | |
2kg | Discontinued | Request information | |
100g | Discontinued | Request information | |
250g | Discontinued | Request information | |
500g | Discontinued | Request information |