3-Bromo-2-oxopentanedioic acid CAS 89469-94-3
| CAS No. | 89469-94-3 |
| Molecular Formula | C5H3BrO5 |
| Molecular Weight | 222.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromo-2-oxopentanedioic acid is closely related to a carbohydrate-derived structure, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Bromo-2-oxopentanedioic acid (CAS 89469-94-3), a certified reference material (molecular formula C5H3BrO5, MW 222.98 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3BrO5, 3-Bromo-2-oxopentanedioic acid contains a carbohydrate-derived structure, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 222.98 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C5H3BrO5 |
| Molecular Weight | 222.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
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