| CAS No. | 150320-87-9 |
| Molecular Formula | C8H23O3Si4 |
| Molecular Weight | 279.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Ethyltris(dimethylsiloxy)silane (CAS 150320-87-9), molecular formula C8H23O3Si4 and molecular weight 279.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyltris(dimethylsiloxy)silane (C8H23O3Si4) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -2.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 279.61 g/mol, it falls into the medium-molecular-weight range.
As a certified reference material (CRM), Ethyltris(dimethylsiloxy)silane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C8H23O3Si4 |
| Molecular Weight | 279.61 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) | -2.5 |
| CAS Registry Year (est.) | 1999 |