1,2-Ethanediol, polymer with ethenyltriethoxysilane and trichloromethylsilane CAS 72259-87-1
| CAS No. | 72259-87-1 |
| Molecular Formula | C8H18O3Si |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2-Ethanediol, polymer with ethenyltriethoxysilane and trichloromethylsilane (CAS 72259-87-1) is a high-purity analytical reference standard with the molecular formula C8H18O3SiCH3Cl3SiC2H6O2 and a molecular weight of 401.85 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 1,2-Ethanediol, polymer with ethenyltriethoxysilane and trichloromethylsilane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 401.85 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C8H18O3Si CH3Cl3Si C2H6O2 |
| Molecular Weight | 401.85 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | -3.0 |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
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