Isobutyl Polysilsesquioxane
Used in cosmetic products as nail conditioning. Isobutyl Polysilsesquioxane is a resinous material composed of a mixture of three-dimensional siloxane polymers and oligomers with cage structures. For the oligomers, each silicon atom in the polysilsesquioxane is connected via oxygen atoms to three other silicon atoms and can be represented by the empirical formulation RSiO3/2 where R represents the isobutyl group. For the larger polymeric polysilsesquioxanes, some of the silicon atoms are not connected to other silicon atoms and instead have a silanol (SiOH) group. Isobutyl Polysilsesquioxane is prepared by the hydrolysis and condensation of 2-methylpropyl trimethoxysilane.
The chemical behind this ingredient
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![Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octakis(2-methylpropyl)- chemical structure, C32H72O12Si8, CAS 221326-46-1](/s/GPJIUZGXKCEIEO-UHFFFAOYSA-N.svg)
IUPAC name: 1,3,5,7,9,11,13,15-octakis(2-methylpropyl)-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
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Frequently asked questions
What is Isobutyl Polysilsesquioxane used for in cosmetics?
Isobutyl Polysilsesquioxane is used in cosmetic products as nail conditioning. Isobutyl Polysilsesquioxane is a resinous material composed of a mixture of three-dimensional siloxane polymers and oligomers with cage structures. For the oligomers, each silicon atom in the polysilsesquioxane is connected via oxygen atoms to three other silicon atoms and can be represented by the empirical formulation RSiO3/2 where R represents the isobutyl group. For the larger polymeric polysilsesquioxanes, some of the silicon atoms are not connected to other silicon atoms and instead have a silanol (SiOH) group. Isobutyl Polysilsesquioxane is prepared by the hydrolysis and condensation of 2-methylpropyl trimethoxysilane.
Is Isobutyl Polysilsesquioxane restricted in cosmetics in the EU?
No EU restriction annex is recorded for Isobutyl Polysilsesquioxane in our records. Rules change and differ by market, so always check the current regulation before you formulate.
What is the CAS number of Isobutyl Polysilsesquioxane?
Isobutyl Polysilsesquioxane is listed with CAS number 221326-46-1.
Where can I buy Isobutyl Polysilsesquioxane?
Post a buy request for Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octakis(2-methylpropyl)- with the grade, quantity and destination you need, and matching suppliers will send you quotes.