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Octaphenylsilsesquioxane

CAS 5256-79-1C48H40O12Si8MW 1033.5

Octaphenylsilsesquioxane (CAS 5256-79-1) — formula C48H40O12Si8, molecular weight 1033.5; category organic chemicals.

Product Description

Octaphenylsilsesquioxane (CAS 5256-79-1) is a chemical raw material in the organic chemicals category. Its molecular formula C48H40O12Si8 comprises 48 C, 40 H, 12 O, 8 Si atoms. Its molecular weight is about 1033.5. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.

Product Overview

CAS Number5256-79-1
Molecular FormulaC48H40O12Si8
Molecular Weight1033.5
ApplicationsPentacyclo[9.5.1.13, 9.15, 15.17, 13]octasiloxane, 15-octaphenyl-: ACTIVE
CategoryOrganic Chemicals

Applications

Documented applications: Pentacyclo[9.5.1.13, 9.15, 15.17, 13]octasiloxane, 15-octaphenyl-: ACTIVE.

Technical Profile

What this product is

Octaphenylsilsesquioxane is a carbon-based organic compound with CAS registry number 5256-79-1 and molecular formula C48H40O12Si8 (molecular weight 1033.5), belonging to the organic chemicals segment of chemical raw materials.

Identification

CAS number: 5256-79-1

Its molecular formula C48H40O12Si8 comprises 48 C, 40 H, 12 O, 8 Si atoms.

Also known as: Octaphenylsilsesquioxane · 八苯基倍半硅氧烷

Category: organic chemicals

Frequently Asked Questions

What is the CAS number of Octaphenylsilsesquioxane?

The CAS registry number of Octaphenylsilsesquioxane is 5256-79-1.

What is the molecular formula and molecular weight of Octaphenylsilsesquioxane?

Molecular formula C48H40O12Si8, molecular weight 1033.5.

What other names is Octaphenylsilsesquioxane known by?

It is also registered under: Octaphenylsilsesquioxane, 八苯基倍半硅氧烷.

What are the documented applications of Octaphenylsilsesquioxane?

Recorded applications: Pentacyclo[9.5.1.13, 9.15, 15.17, 13]octasiloxane, 15-octaphenyl-: ACTIVE.

Which category does Octaphenylsilsesquioxane belong to?

Category: Organic Chemicals.

Packaging & documentation

Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.

PubChem Public Data

Independent reference data for Octaphenylsilsesquioxane (CAS 5256-79-1), compiled from public chemistry databases.

Registry identifiers across databases

CAS Registry Number5256-79-1
PubChem CID521391
Molecular formulaC48H40O12Si8
IUPAC name1,3,5,7,9,11,13,15-octakis-phenyl-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

Computed descriptors

Molecular Weight1033.5
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count12
Rotatable Bond Count8
Exact Mass1032.06738898
Monoisotopic Mass1032.06738898
Topological Polar Surface Area111
Heavy Atom Count68

Documented uses on record

  • Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-: ACTIVE

Synonyms and trade names

Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-; Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl-; RefChem:859709; Octaphenylsilsesquioxane; 5256-79-1; Octaphenyloctasilsesquioxane; Perphenyloctasilsesquioxane; PSS-Octaphenyl substituted; MFCD00308870; Phenyl-POSS; Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octaphenyl-; AKOS015903488; O0349; 1,3,5,7,9,11,13,15-octaphenylpentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane; Octaphenyl-T8-silsesquioxane; C48H40O12Si8

What the public record says

Octaphenylsilsesquioxane · CAS 5256-79-1 · C48H40O12Si8.

Source: PubChem / Wikidata; the batch COA governs where values differ.

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