5-(Benzyloxy)-4-bromo-2-phenylpyridazin-3(2H)-one CAS 565156-92-5
| CAS No. | 565156-92-5 |
| Molecular Formula | C17H13BrN2O2 |
| Molecular Weight | 357.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(Benzyloxy)-4-bromo-2-phenylpyridazin-3(2H)-one (CAS 565156-92-5), molecular formula C17H13BrN2O2 and molecular weight 357.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H13BrN2O2, 5-(Benzyloxy)-4-bromo-2-phenylpyridazin-3(2H)-one contains a steroid core, 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 357.20 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.
Physical & Chemical Properties
| Molecular Formula | C17H13BrN2O2 |
| Molecular Weight | 357.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Benzyloxy Standards
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Recommended Standards
- 5-(4-Bromophenyl)-6-hydroxy-3-methyl-1-phenylpyridazin-4(1H)-one (CAS 89314-15-8)
- N-(4-Bromo-2-methylphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide (CAS 852367-91-0)
- 5-(4-Bromophenoxy)-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 882228-97-9)
- N-(4-bromophenyl)-2-(3-formyl-1H-indol-1-yl)acetamide (CAS 384352-97-0)
- (5E,8E,11Z,14Z,17Z)-5,8,11,14,17-Ethyl Eicosapentaenoate (CAS CATO-C4X-289011)
- 2-((1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)amino)ethyl 4-methylbenzenesulfonate (CAS 130634-04-7)
- (E)-2-{1-[3,5-Bis(trifluoromethyl)phenyl]-4-nitro-1H-1,2,3-triazol-5-yl}-N,N-dimethyl-1-ethenamine (CAS 477890-37-2)
- 4-Methyl-N-(3-oxo-3-(pyrrolidin-1-yl)propyl)benzenesulfonamide (CAS 122081-15-6)
- 1-Benzhydryl-3-fluoro-3-phenylazetidine (CAS 1126650-54-1)
- (2-(2-Fluorophenoxy)acetyl)-L-alanine (CAS 1308918-55-9)
- 3-(Aminomethyl)benzaldehyde (CAS 219919-14-9)
- 4-Amino-5-(2,4-dimethoxyphenyl)pentanoic acid (CAS 948015-77-8)
- Carbocisteine Impurity 32 (CAS CATO-C4X-201032)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
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