| CAS No. | 18036-83-4 |
| Molecular Formula | C12H22OSi2 |
| Molecular Weight | 238.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Trimethyl(2-((trimethylsilyl)oxy)phenyl)silane (CAS 18036-83-4), molecular formula C12H22OSi2 and molecular weight 238.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Trimethyl(2-((trimethylsilyl)oxy)phenyl)silane (C12H22OSi2) contains a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 238.47 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C12H22OSi2 |
| Molecular Weight | 238.47 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |