Ethyl 5-bromo-4,6-dihydroxynicotinate CAS 89978-58-5
| CAS No. | 89978-58-5 |
| Molecular Formula | C8H8BrNO4 |
| Molecular Weight | 262.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 5-bromo-4,6-dihydroxynicotinate (C8H8BrNO4) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 262.06 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Ethyl 5-bromo-4,6-dihydroxynicotinate (CAS 89978-58-5), molecular formula C8H8BrNO4 and molecular weight 262.06 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl 5-bromo-4,6-dihydroxynicotinate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H8BrNO4 |
| Molecular Weight | 262.06 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 |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Methyl 2-(tert-butyl)-1H-indole-3-carboxylate (CAS 773875-68-6)
- 4-(2-Chloro-6-fluorophenyl)butan-1-amine (CAS 1017125-30-2)
- 4-bromo-1H,2H,3H-pyrrolo[2,3-b]pyridine (CAS 1393534-35-4)
- 1-Ethyl-4-(prop-2-yn-1-yloxy)benzene (CAS 916831-17-9)
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- Cyhalothrin Impurity 15 (CAS 71962-66-8)
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