| CAS No. | 4221-95-8 |
| Molecular Formula | C8H24O10Si3 |
| Molecular Weight | 364.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Octamethyl trisilicate is closely related to a carbohydrate-derived structure in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Octamethyl trisilicate (CAS 4221-95-8), a certified reference material (molecular formula C8H24O10Si3, MW 364.53 g/mol) for analytical method development and quality control.
Owing to a carbohydrate-derived structure, Octamethyl trisilicate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 364.53 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.
CATO manufactures Octamethyl trisilicate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C8H24O10Si3 |
| Molecular Weight | 364.53 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 |
| Degree of Unsaturation (DBE) | -3.0 |
| CAS Registry Year (est.) | 1958 |