tert-Butyl 2-(4-((tert-butyldimethylsilyl)oxy)-1H-pyrazol-1-yl)acetate CAS 883976-90-7
| CAS No. | 883976-90-7 |
| Molecular Formula | C15H28N2O3Si |
| Molecular Weight | 312.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
tert-Butyl 2-(4-((tert-butyldimethylsilyl)oxy)-1H-pyrazol-1-yl)acetate (CAS 883976-90-7) is a high-purity analytical reference standard with the molecular formula C15H28N2O3Si and a molecular weight of 312.48 g/mol.
Based on its molecular formula C15H28N2O3Si, tert-Butyl 2-(4-((tert-butyldimethylsilyl)oxy)-1H-pyrazol-1-yl)acetate contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 312.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H28N2O3Si |
| Molecular Weight | 312.48 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
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