3-Bromo-5-(pyridazin-4-yl)pyridin-2(1H)-one CAS 90632-03-4
| CAS No. | 90632-03-4 |
| Molecular Formula | C9H6BrN3O |
| Molecular Weight | 252.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Bromo-5-(pyridazin-4-yl)pyridin-2(1H)-one (CAS 90632-03-4), a certified reference material (molecular formula C9H6BrN3O, MW 252.07 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H6BrN3O, 3-Bromo-5-(pyridazin-4-yl)pyridin-2(1H)-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 252.07 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.
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 | C9H6BrN3O |
| Molecular Weight | 252.07 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 3-Bromo-4-(1H-1,2,4-triazol-1-yl)benzaldehyde (CAS 1007317-53-4)
- 5-Bromo-2-(Pyridin-2-yloxy)pyrimidine (CAS 1017789-05-7)
- 5-Bromo-2-(4-pyridyloxy)pyrimidine (CAS 1017789-07-9)
- 3-Bromo-7-methoxyimidazo[1,2-a]pyridine-8-carbonitrile (CAS 1072944-45-6)
- 6-Bromo-4-methoxypyrazolo[1,5-a]pyridine-3-carbonitrile (CAS 1207836-10-9)
- (3-Bromo-1H-1,2,4-triazol-1-yl)(phenyl)methanone (CAS 129053-62-9)
- 6-Bromo-8-(methylamino)imidazo[1,2-a]pyrazine-2-carbonitrile (CAS 142744-39-6)
- 5-Bromo-6-(pyridin-4-yl)pyrimidin-4(3H)-one (CAS 1443287-96-4)
Recommended Standards
- 3-(Boc-aminomethyl)-4-pyridineboronic Acid (CAS 433969-29-0)
- 3-Bromo-5-(pyrimidin-4-yl)pyridin-2(1H)-one (CAS 90024-18-3)
- 2-Iodo-1-(thiophen-2-yl)ethanone (CAS 55984-19-5)
- 3-chloro-1,2-benzoxazole-5-sulfonyl chloride (CAS 869885-72-3)
- 1-(2-Bromo-1-(3-methoxypropoxy)ethyl)-4-methylbenzene (CAS 1249388-98-4)
- N-(pyridin-3-ylmethyl)pyrrolidine-2-carboxamide (CAS 1132659-16-5)
- amino((1-aza-2-(2-(4-bromophenoxy)-5-nitrophenyl)vinyl)amino)methane-1-thione (CAS 1025258-26-7)
- 2-Fluoro-4-nitrobenzonitrile (CAS 34667-88-4)
- Octahydropyrrolo[1,2-a]pyrazine-1-carboxylic acid (CAS 1803562-61-9)
- 5-(5-(4-(4,5-Dihydrooxazol-2-yl)-2-vinylphenoxy)pentyl)-3-methylisoxazole (CAS 105663-64-7)
- 7-Ethoxy-2-nitrobenzofuran (CAS 56897-23-5)
- 4-Bromo-6-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-5-carbaldehyde (CAS 2852768-02-4)
- N-Succinimidoxycarbonyl-β-alanine N-Succinimidyl Ester (CAS 21994-89-8)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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