1,3,5,7,9,11,14-Heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol 307531-92-6 Isobutyltrisilanol-POSS® CAS 307531-92-6

Purity 97%+In StockPharmaceutical Standards
CAS No.307531-92-6
Molecular FormulaC28H66O12Si7
Molecular Weight791.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3,5,7,9,11,14-Heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol 307531-92-6 Isobutyltrisilanol-POSS® CAS 307531-92-6 chemical structure

Description

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 1,3,5,7,9,11,14-Heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol 307531-92-6 Isobutyltrisilanol-POSS® is typically white to off-white amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 791.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

CATO supplies 1,3,5,7,9,11,14-Heptaisobutyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol 307531-92-6 Isobutyltrisilanol-POSS® (CAS 307531-92-6), a certified reference material (molecular formula C28H66O12Si7, MW 791.41 g/mol) for analytical method development and quality control.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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.

Physical & Chemical Properties

Molecular FormulaC28H66O12Si7
Molecular Weight791.41 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)-4.0
CAS Registry Year (est.)2025

Recommended Standards

Why CATO?