ChemicalBook >> CAS DataBase List >>Octaphenylsilsesquioxane
Octaphenylsilsesquioxane
- CAS No.
- 5256-79-1
- Chemical Name:
- Octaphenylsilsesquioxane
- Synonyms
- -POSS;Phenyl-POSS;pss-octaphenyl substituted;DK802;DKSI194;Hydrogen-POSS;JACS-5256-79-1;Octaphenyl-POSS;Aminophenyl-POSS;Nitrophenyl-POSS
- CBNumber:
- CB0106036
- Molecular Formula:
- C48H40O12Si8
- Molecular Weight:
- 1033.51
- MDL Number:
- MFCD00308870
- MOL File:
- 5256-79-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-27 17:05:37
| Melting point | >350 °C (lit.) |
|---|---|
| Density | 1.30 g/cm3 |
| refractive index | 1.61 |
| storage temp. | Inert atmosphere,Room Temperature |
| form | powder to crystal |
| Specific Gravity | 1.35 |
| color | White to Almost white |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| 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)c6ccccc6)c7ccccc7)c8ccccc8)c9ccccc9)c%10ccccc%10)c%11ccccc%11)c%12ccccc%12)c%13ccccc%13 |
| CAS DataBase Reference | 5256-79-1 |
| NIST Chemistry Reference | Silsesquioxane, phenyl-, cubical octamer(5256-79-1) |
| EPA Substance Registry System | Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl- (5256-79-1) |
| UNSPSC Code | 12162002 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H332-H335 |
| Precautionary statements | P261-P280-P305+P351+P338 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 29319000 |
| Storage Class | 11 - Combustible Solids |
Octaphenylsilsesquioxane price More Price(23)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 526851 | PSS-Octaphenyl substituted | 5256-79-1 | 25g | $264 | 2026-04-30 | Buy |
| Sigma-Aldrich | 526851 | PSS-Octaphenyl substituted | 5256-79-1 | 5g | $70.9 | 2023-06-20 | Buy |
| TCI Chemical | O0349 | Octaphenyloctasilsesquioxane | 5256-79-1 | 5g | $59 | 2026-04-30 | Buy |
| TCI Chemical | O0349 | Octaphenyloctasilsesquioxane | 5256-79-1 | 25g | $235 | 2026-04-30 | Buy |
| Chem-Impex | 40514 | Octaphenyloctasilsesquioxane ≥98% | 5256-79-1 | 5G | $65.4 | 2026-05-19 | Buy |
Octaphenylsilsesquioxane Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 6)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Suzhou Siso new material Co.,Ltd. | 0512-65402974 18550909935 | siso03@126.com | China | 1925 | 58 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400-6387771-6039 18920764717 | sales@heowns.com | China | 24650 | 60 |
| Shanghai Jizhi Biochemical Technology Co. Ltd. | 021-4009004166/18616739031 18616739031 | 3007523370@qq.com | China | 40000 | 58 |
| Beijing Minruida Technology Co., Ltd. | 010-82387566 | sales@mreda.com.cn | China | 19323 | 58 |
| Alfa Chemistry | +1-5166625404; | Info@alfa-chemistry.com | United States | 20000 | 58 |
| BOC Sciences | +1-631-485-4226 | inquiry@bocsci.com | United States | 19935 | 58 |
5256-79-1 (Octaphenylsilsesquioxane) Related Search:
OCTAPHENYLSILSESQUIOXANE
OCTAPHENYL-T8-SILSESQUIOXANE
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, octaphenyl-
Perphenyloctasilsesquioxane
1,3,5,7,9,11,13,15-OCTAPHENYLPENTACYCLO-OCTASILOXANE
Octaphenyl-POSS(R), Octaphenylsilsesquioxane, 1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane
Octaphenyloctasilsesquioxane
Hydrogen-POSS
Nitrophenyl-POSS
Aminophenyl-POSS
PSS-Octaphenyl substituted,1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, Octaphenyl-POSS, Octaphenylsilsesquioxane
OCTAPHENYL-T8-SILSESQUIOXAN
Octaphenylsilsesquioxane (Octaphenyl substituted-PSS)
Octaphenyl-POSS
JACS-5256-79-1
1,3,5,7,9,11,13,15-Octaphenyl-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]icosane
Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-
Octaphenylsilsesquioxane（POSS）
Octaphenylsilsequioxane
DK802
DKSI194
Phenyl-POSS
-POSS
pss-octaphenyl substituted
5256-79-1
C48H40O12Si8
