| CAS No. | 1992-48-9 |
| Molecular Formula | C12H28O4Si |
| Molecular Weight | 264.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 264.43 g/mol gives Tetraisopropyl Orthosilicate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Tetraisopropyl Orthosilicate (CAS 1992-48-9) is a high-purity analytical reference standard with the molecular formula C12H28O4Si and a molecular weight of 264.43 g/mol.
Based on its molecular formula C12H28O4Si, Tetraisopropyl Orthosilicate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 264.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 Tetraisopropyl Orthosilicate 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 | C12H28O4Si |
| Molecular Weight | 264.43 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1957 |