| CAS No. | 38147-00-1 |
| Molecular Formula | C13H39O5Si6 |
| Molecular Weight | 443.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 1,3,3,3-Tetramethyldisiloxanyl tris(trimethylsilyl) Silicate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,3,3,3-Tetramethyldisiloxanyl tris(trimethylsilyl) Silicate (CAS 38147-00-1) is a high-purity analytical reference standard with the molecular formula C13H39O5Si6 and a molecular weight of 443.96 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 1,3,3,3-Tetramethyldisiloxanyl tris(trimethylsilyl) Silicate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 443.96 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
| Molecular Formula | C13H39O5Si6 |
| Molecular Weight | 443.96 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -5.5 |
| CAS Registry Year (est.) | 1967 |