Sodium 5-bromo-3-carboxypicolinate CAS 2138032-69-4
| CAS No. | 2138032-69-4 |
| Molecular Formula | C7H3BrNO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 268.00 g/mol gives Sodium 5-bromo-3-carboxypicolinate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Sodium 5-bromo-3-carboxypicolinate (CAS 2138032-69-4) is a high-purity analytical reference standard with the molecular formula C7H3BrNO4Na and a molecular weight of 268.00 g/mol.
The molecular framework of Sodium 5-bromo-3-carboxypicolinate (C7H3BrNO4Na) is characterized by a salt form, an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H3BrNO4 Na |
| Molecular Weight | 268.00 g/mol |
| Appearance | Off-white to pale 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, water |
| 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Calcitriol Impurity 6 (CAS CATO-C4X-15106)
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- Butan-1-amine acetate (CAS 1641-36-7)
- N'-((5-(3,4-Dichlorophenyl)furan-2-yl)methylene)benzohydrazide (CAS 331670-28-1)
- 2,3-Difluorobenzotrifluoride (CAS 64248-59-5)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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