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CAS 221326-46-1

CAS 221326-46-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 221326-46-1
CAS 221326-46-1PubChem CID 4524693

Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octakis(2-methylpropyl)-

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
Molecular formula
C32H72O12Si8
Molecular weight
873.6 g/mol
Exact mass
872.31779000 Da
Topological polar surface area
111.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
12
Covalent units
1
Defined stereocentres
0

Also known as

Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, octakis(2-methylpropyl)-Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octakis(2-methylpropyl)-Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octakis(2-methylpropyl)-RefChem:859707OctaIsobutyl-POSSPSS-OCTAISOBUTYL SUBSTITUTED 97C32H72O12Si8Octakis(isobutyl)-silsesquioxane
4 more reported names
GPJIUZGXKCEIEO-UHFFFAOYSA-N1,3,5,7,9,11,13,15-octaisobutyl-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]icosaneAS-935761,3,5,7,9,11,13,15-Octakis(2-methylpropyl)pentacyclo[9.5.1.1~3,9~.1~5,15~.1~7,13~]octasiloxane
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 221326-46-1

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How CAS 221326-46-1 is used on this site

CAS 221326-46-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 221326-46-1 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.