6-Bromo-4-oxo-1,4-dihydroquinoline-2-carboxylic acid CAS 52980-05-9
| CAS No. | 52980-05-9 |
| Molecular Formula | C10H6BrNO3 |
| Molecular Weight | 268.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Bromo-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (C10H6BrNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 268.06 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
6-Bromo-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 52980-05-9), molecular formula C10H6BrNO3 and molecular weight 268.06 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C10H6BrNO3 |
| Molecular Weight | 268.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 8-Bromo-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 1016841-45-4)
- 6-Bromo-4-hydroxyquinoline-2-carboxylic acid (CAS 10174-70-6)
- 8-Bromo-4-hydroxyquinoline-2-carboxylic acid (CAS 10174-71-7)
- 7-Bromo-3-hydroxyquinoline-4-carboxylic acid (CAS 1031929-53-9)
- 5-Bromo-3-hydroxyquinoline-4-carboxylic acid (CAS 1031929-54-0)
- 3-Bromo-4-hydroxyquinoline-6-carboxylic acid (CAS 1065088-02-9)
- 3-Bromo-4-oxo-1,4-dihydroquinoline-8-carboxylic acid (CAS 1065088-08-5)
- 5-Bromo-3-formyl-1h-indole-2-carboxylic acid (CAS 1082193-05-2)
Recommended Standards
- 6-Bromo-3-hydroxyquinoline-4-carboxylic acid (CAS 552330-93-5)
- 6-Bromo-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 302553-00-0)
- 6-Bromo-2-oxo-1,2-dihydroquinoline-4-carboxylic acid (CAS 5463-29-6)
- 6-Bromo-7-methoxyquinoline-5,8-dione (CAS 86927-80-2)
- (2-Chloro-5-(difluoromethyl)-6-iodopyridin-3-yl)methanol (CAS 1806020-84-7)
- Methyl 4-Chloroindole-3-carboxylate (CAS 101909-42-6)
- tert-Butyl (2-(2-acetyl-6-cyanopyridin-4-yl)ethyl)carbamate (CAS 1393573-88-0)
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- n-Cyclopropyl-1-(2-methoxyethyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide (CAS 1197831-66-5)
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