Dimethyl 3-bromo-2-oxopentanedioate CAS 148728-48-7
| CAS No. | 148728-48-7 |
| Molecular Formula | C7H9BrO5 |
| Molecular Weight | 253.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Dimethyl 3-bromo-2-oxopentanedioate (CAS 148728-48-7), a certified reference material (molecular formula C7H9BrO5, MW 253.05 g/mol) for analytical method development and quality control.
The molecular framework of Dimethyl 3-bromo-2-oxopentanedioate (C7H9BrO5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C7H9BrO5 |
| Molecular Weight | 253.05 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1999 |
| Halogen Content | Br-containing |
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- Semaglutide impurity 86 (CAS CATO-C4X-222686)
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