Benzbromarone Impurity 14 CAS 77823-55-3
| CAS No. | 77823-55-3 |
| Molecular Formula | C7H3Br2ClO2 |
| Molecular Weight | 314.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Benzbromarone Impurity 14 (C7H3Br2ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. 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).
Benzbromarone Impurity 14 (CAS 77823-55-3) is a certified pharmaceutical impurity reference standard with the molecular formula C7H3Br2ClO2 and a molecular weight of 314.36 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C7H3Br2ClO2 |
| Molecular Weight | 314.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl/Br-containing |
Related Benzbromarone Standards
- Benzbromarone Impurity 8 (CAS 27003-05-0)
- Benzbromarone Impurity 18 (CAS 857537-46-3)
- Benzbromarone EP Impurity A (CAS 94729-09-6)
- Benzbromarone Impurity 12 (CAS 3343-80-4)
- Benzbromarone Impurity 23 (CAS CATO-C4X-225023)
- Benzbromarone Impurity 24 (CAS 342415-01-4)
- Benzbromarone Impurity 25 (CAS CATO-C4X-225025)
- Benzbromarone Impurity 32 (CAS CATO-C4X-225032)
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