Methyl 4-bromo-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-3-carboxylate CAS 2641466-07-9
| CAS No. | 2641466-07-9 |
| Molecular Formula | C11H18BrIN2O3Si |
| Molecular Weight | 461.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 4-bromo-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-3-carboxylate is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 4-bromo-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-3-carboxylate (CAS 2641466-07-9) is a high-purity analytical reference standard with the molecular formula C11H18BrIN2O3Si and a molecular weight of 461.17 g/mol.
Methyl 4-bromo-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-3-carboxylate (C11H18BrIN2O3Si) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine/iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C11H18BrIN2O3Si |
| Molecular Weight | 461.17 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 2 |
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