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Hexacyclohexyl-hexasilsesquioxane, also known as C6H18Si6O12, is a complex cyclic organosilicon compound consisting of six silicon atoms, twelve oxygen atoms, and eighteen hydrogen atoms. It is a white crystalline solid with a highly symmetrical structure, where each silicon atom is bonded to three oxygen atoms and one carbon atom, forming a hexagonal ring. hexacyclohexyl-hexasilsesquioxane is known for its thermal stability, hydrophobicity, and low toxicity, making it useful in various applications such as a cross-linking agent in polymers, a component in silicone resins, and a reinforcing agent in rubber. Its unique structure also contributes to its use in the production of high-performance materials and as a precursor in the synthesis of other organosilicon compounds.

3553-72-8

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3553-72-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3553-72-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,5 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3553-72:
(6*3)+(5*5)+(4*5)+(3*3)+(2*7)+(1*2)=88
88 % 10 = 8
So 3553-72-8 is a valid CAS Registry Number.

3553-72-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name hexacyclohexyl-hexasilsesquioxane

1.2 Other means of identification

Product number -
Other names Hexacyclohexyl-tetracyclo[5.5.1.13.11.15.9]hexasiloxan

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
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More Details:3553-72-8 SDS

3553-72-8Relevant academic research and scientific papers

The preparation of hexasilsesquioxane (T6) cages by "non aqueous" hydrolysis of trichlorosilanes

Bassindale, Alan R.,MacKinnon, Iain A.,Maesano, Maria G.,Taylor, Peter G.

, p. 1382 - 1383 (2003)

Hexasilsesquioxane cages (T6) have been prepared from a range of alkyl and aryl trichlorosilanes using a "non aqueous" hydrolysis with dimethyl sulfoxide.

The structure of hexa(cyclohexylsesquisiloxane), (C6H11)6Si6O9

Behbehani, H.,Brisdon, B.J.,Mahon, M.F.,Molloy, K.C.

, p. 19 - 24 (2007/10/02)

The structure of hexa(cyclohexylsesquisiloxane), Cy6Si6O9, has been determined and shown to be based on a cage arrangement in which two non-planar six-membered Si3O3 rings are joined co-facially by Si-O-Si bridges, so generating three further Si4O4 rings.

Silsesquioxanes as Models for Silica Surfaces

Feher, Frank J.,Newman, David A.,Walzer, John F.

, p. 1741 - 1748 (2007/10/02)

The hydrolytic condensation of cyclohexyltrichlorosilane (CySiCl3) affords (1), (2), and (3a).Trisilanol 1 and 3b, the bis(triphenyltin) derivative of 3a, have been structurally characterized by single-crystal X-ray diffraction studies.Trisilanol 1 undergoes corner-capping reactions with trifunctional monomers (e.g., R'SiCl3, MeGeCl3, MeSnCl3), is selectively monosilylated to (6a) with chlorotrimethylsilane, and can be dehydrated to (7a).Comparison of the molecular structure of 1 with (111) β-cristobalite and (0001)β-tridymite reveals many structural similarities.Silsesquioxanes 1, 6a, and 7a are discussed as models for silica surfaces.

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