1-(2-trans-Cyclohexanediol)ethyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9 .15,15.17,13]octasiloxane 480439-48-3 POSS®-trans-cyclohexanediol-isobutyl substituted PSS-(2-(trans-3,4-Cyclohexanediol)ethyl)-Heptaisobutyl substituted trans-Cyclohexanediolisobutyl-POSS® CAS 480439-48-3

Purity 97%+In StockPharmaceutical Standards
CAS No.480439-48-3
Molecular FormulaC36H78O14Si8
Molecular Weight959.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(2-trans-Cyclohexanediol)ethyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9 .15,15.17,13]octasiloxane 480439-48-3 POSS®-trans-cyclohexanediol-isobutyl substituted PSS-(2-(trans-3,4-Cyclohexanediol)ethyl)-Heptaisobutyl substituted trans-Cyclohexanediolisobutyl-POSS® CAS 480439-48-3 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

1-(2-trans-Cyclohexanediol)ethyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9 .15,15.17,13]octasiloxane 480439-48-3 POSS®-trans-cyclohexanediol-isobutyl substituted PSS-(2-(trans-3,4-Cyclohexanediol)ethyl)-Heptaisobutyl substituted trans-Cyclohexanediolisobutyl-POSS® (CAS 480439-48-3), molecular formula C36H78O14Si8 and molecular weight 959.68 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 1-(2-trans-Cyclohexanediol)ethyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9 .15,15.17,13]octasiloxane 480439-48-3 POSS®-trans-cyclohexanediol-isobutyl substituted PSS-(2-(trans-3,4-Cyclohexanediol)ethyl)-Heptaisobutyl substituted trans-Cyclohexanediolisobutyl-POSS® is typically white to off-white amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 959.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC36H78O14Si8
Molecular Weight959.68 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-2.0
CAS Registry Year (est.)2025

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