| CAS No. | 66697-09-4 |
| Molecular Formula | C9H16O3Si |
| Molecular Weight | 200.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), Ethyl 2-hydroxy-4-(trimethylsilyl)but-3-ynoate 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.
Ethyl 2-hydroxy-4-(trimethylsilyl)but-3-ynoate (CAS 66697-09-4) is a high-purity analytical reference standard with the molecular formula C9H16O3Si and a molecular weight of 200.31 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Ethyl 2-hydroxy-4-(trimethylsilyl)but-3-ynoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.31 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.
| Molecular Formula | C9H16O3Si |
| Molecular Weight | 200.31 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) | 2.0 |
| CAS Registry Year (est.) | 1976 |