125756-69-6

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OCTAKIS(DIMETHYLSILOXY)-T8-SILSESQUIOXANE

Product Code: SIO6696.5

Cas No: 125756-69-6

R&D quantities:

10 g
$174.00
2.5 g
$50.00
Siloxane-Based Silane Reducing Agent

Organosilanes are hydrocarbon-like and possess the ability to serve as both ionic and free-radical reducing agents. These reagents and their reaction by-products are safer and more easily handled and disposed than many other reducing agents. The metallic nature of silicon and its low electronegativity relative to hydrogen lead to polarization of the Si-H bond yielding a hydridic hydrogen and a milder reducing agent compared to aluminum-, boron-, and other metal-based hydrides. A summary of some key silane reductions are presented in Table 1 of the Silicon-Based Reducing Agents brochure.

Octakis(dimethylsiloxy)-T8-silsesquioxane; Octakis(dimethylsiloxy)octaprismosilsesquioxane
  • Solid siloxane reducing agent
  • Offers 8 Si–H bonds
  • Potential for easy removal of silicon by-products
  • Soluble: hexane, methylene chloride
  • Forms derivatives suitable for composite dental materials
  • Extensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007
  • Melting Point: >300° dec.

    Molecular Weight: 1017.98

    Alternative Name: OCTAKIS(DIMETHYLSILOXY)OCTAPRISMOSILSESQUIOXANE

    Specific Gravity: 1.23

    HMIS Key: 2-1-1-X

    Hydrolytic Sensitivity: 3: reacts with aqueous base

    Formula: C16H56O20Si16

    Refractive Index: 1.43

    Application: Forms derivatives suitable for composite dental materials.1

    Reference: 1. Sellinger, A. et al. Chem. Mater. 1996, 8, 1592.

    Additional Properties: Soluble: hexane, methylene chloride