2-Bromo-1,6-naphthyridin-5(6H)-one CAS 1260666-22-5
| CAS No. | 1260666-22-5 |
| Molecular Formula | C8H5BrN2O |
| Molecular Weight | 225.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Bromo-1,6-naphthyridin-5(6H)-one (CAS 1260666-22-5), molecular formula C8H5BrN2O and molecular weight 225.04 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5BrN2O, 2-Bromo-1,6-naphthyridin-5(6H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.04 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.
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 | C8H5BrN2O |
| Molecular Weight | 225.04 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-Bromo-1H-pyrrolo[3,2-c]pyridine-3-carbaldehyde (CAS 1000341-75-2)
- 4-Bromo-1H-pyrrolo[3,2-c]pyridine-3-carbaldehyde (CAS 1000341-87-6)
- 5-Bromo-1,6-naphthyridin-2-ol (CAS 105276-96-8)
- 4-Bromo-2-(furan-3-yl)pyrimidine (CAS 1086381-95-4)
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- 8-Bromo-1H-quinoxalin-2-one (CAS 1092563-82-0)
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Recommended Standards
- 3-Bromo-1,6-naphthyridin-5(6H)-one (CAS 1260665-60-8)
- 5-Bromo-1,8-naphthyridin-2(1H)-one (CAS 1260667-03-5)
- 2-Bromo-1,7-naphthyridin-8(7H)-one (CAS 1260664-18-3)
- 6-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 1261171-00-9)
- Methyl 2-(4-carbamoylphenyl)acetate (CAS 861545-78-0)
- 1-Ethyl-4,6-dimethyl-3-(o-tolylsulfonyl)pyridin-2(1H)-one (CAS 477864-58-7)
- 2-(1-Methylpiperazin-2-yl)acetonitrile (CAS 141944-75-4)
- 2,3-Dimethyl-4-(phenylmethoxy)benzaldehyde (CAS 1609289-76-0)
- Methyl 3-[(2,5-dichlorobenzenesulfonyl)oxy]-4-nitrobenzoate (CAS 297150-06-2)
- Tert-butyl 1-fluoro-5-formyl-3-azabicyclo[3.1.1]Heptane-3-carboxylate (CAS 2344680-51-7)
- 1-Penten-4-yn-3-ol (CAS 14304-27-9)
- 3-(2-Amino-6-methyl-4-oxo-1,4-dihydropyrimidin-5-yl)propanenitrile (CAS 92146-11-7)
- Ethyl 5-(chlorosulfonyl)-2-iodobenzoate (CAS 1155911-38-8)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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