1-(4-Bromophenyl)-1,2-dihydropyridazine-3,6-dione CAS 5435-32-5
| CAS No. | 5435-32-5 |
| Molecular Formula | C10H7BrN2O2 |
| Molecular Weight | 267.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(4-Bromophenyl)-1,2-dihydropyridazine-3,6-dione (CAS 5435-32-5), a certified reference material (molecular formula C10H7BrN2O2, MW 267.08 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1-(4-Bromophenyl)-1,2-dihydropyridazine-3,6-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C10H7BrN2O2 |
| Molecular Weight | 267.08 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- 3-(2-Bromophenyl)-1H-pyrazole-5-carboxylic acid (CAS 1038915-04-6)
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- 5-(3-Bromophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1135821-47-4)
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- 1-(2-Bromophenyl)-1h-pyrazole-4-carboxylic acid (CAS 1153041-33-8)
- 1-(3-Bromophenyl)-1H-pyrazole-4-carboxylic acid (CAS 1156994-32-9)
- 1-(4-Bromophenyl)-1,4-dihydropyrazine-2,3-dione (CAS 1216075-41-0)
Recommended Standards
- 1-(3-Bromophenyl)-1H-imidazole-4-carboxylic acid (CAS 445303-24-2)
- 1-(4-Bromophenyl)-1H-imidazole-4-carboxylic acid (CAS 445302-27-2)
- 1-((3-Bromopyridin-4-yl)methyl)-1H-pyrrole-2,5-dione (CAS 2143871-81-0)
- 1-(5-Bromopyridin-2-yl)-3-methyl-1H-pyrrole-2,5-dione (CAS 330942-91-1)
- (2Z)-2-(3-amino-1H-isoindol-1-ylidene)-3-oxo-3-piperidin-1-ylpropanenitrile (CAS 200071-78-9)
- 3-Chloro-2,4-dimethoxy-6-(trifluoromethyl)pyridine (CAS 1214383-65-9)
- N-((2R,3R,4S,5R)-2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)-2,2,2-trifluoroacetamide (CAS 51989-21-0)
- Diethyl (2,4-dimethylphenyl)phosphonate (CAS 58983-20-3)
- Methyl 6-(benzyl(methyl)amino)nicotinate (CAS 1355178-19-6)
- 2-Formyl-N,N-dimethyl-1H-imidazole-1-sulfonamide (CAS 167704-98-5)
- Adenosine Cyclophosphate Impurity 3 (CAS 63963-62-2)
- (2-(4-Bromophenyl)-1,3-dioxolan-2-yl)methanol (CAS 850868-72-3)
- Trelagliptin Impurity 65 (CAS CATO-C4X-104665)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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