Tert-butyl 4-bromo-3,3-difluoropyrrolidine-1-carboxylate CAS 2167546-25-8
| CAS No. | 2167546-25-8 |
| Molecular Formula | C9H14BrF2NO2 |
| Molecular Weight | 286.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 286.11 g/mol gives Tert-butyl 4-bromo-3,3-difluoropyrrolidine-1-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Tert-butyl 4-bromo-3,3-difluoropyrrolidine-1-carboxylate (CAS 2167546-25-8) is a high-purity analytical reference standard with the molecular formula C9H14BrF2NO2 and a molecular weight of 286.11 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, Tert-butyl 4-bromo-3,3-difluoropyrrolidine-1-carboxylate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H14BrF2NO2 |
| Molecular Weight | 286.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
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