1-[2-(3,4-Epoxycyclohexyl)ethyl]-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 445379-56-6 EpoxyCyclohexylIsobutyl-POSS® POSS®-Epoxycyclohexyl-isobutyl substituted PSS-[2-(3,4-Epoxycyclohexyl)ethyl]-Heptaisobutyl substituted CAS 445379-56-6
| CAS No. | 445379-56-6 |
| Molecular Formula | C36H76O13Si8 |
| Molecular Weight | 941.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-[2-(3,4-Epoxycyclohexyl)ethyl]-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 445379-56-6 EpoxyCyclohexylIsobutyl-POSS® POSS®-Epoxycyclohexyl-isobutyl substituted PSS-[2-(3,4-Epoxycyclohexyl)ethyl]-Heptaisobutyl substituted (CAS 445379-56-6), molecular formula C36H76O13Si8 and molecular weight 941.66 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-[2-(3,4-Epoxycyclohexyl)ethyl]-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 445379-56-6 EpoxyCyclohexylIsobutyl-POSS® POSS®-Epoxycyclohexyl-isobutyl substituted PSS-[2-(3,4-Epoxycyclohexyl)ethyl]-Heptaisobutyl substituted (C36H76O13Si8) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 Formula | C36H76O13Si8 |
| Molecular Weight | 941.66 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 2025 |
Related Epoxycyclohexyl Standards
Recommended Standards
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