4-Bromo-2-[2-(4-chlorophenyl)-2-oxoethyl]-5-(pyrrolidin-1-yl)-2,3-dihydropyridazin-3-one CAS 303987-85-1
| CAS No. | 303987-85-1 |
| Molecular Formula | C16H15BrClN3O2 |
| Molecular Weight | 396.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 396.67 g/mol gives 4-Bromo-2-[2-(4-chlorophenyl)-2-oxoethyl]-5-(pyrrolidin-1-yl)-2,3-dihydropyridazin-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-2-[2-(4-chlorophenyl)-2-oxoethyl]-5-(pyrrolidin-1-yl)-2,3-dihydropyridazin-3-one (CAS 303987-85-1) is a high-purity analytical reference standard with the molecular formula C16H15BrClN3O2 and a molecular weight of 396.67 g/mol.
Based on its molecular formula C16H15BrClN3O2, 4-Bromo-2-[2-(4-chlorophenyl)-2-oxoethyl]-5-(pyrrolidin-1-yl)-2,3-dihydropyridazin-3-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 396.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromo-2-[2-(4-chlorophenyl)-2-oxoethyl]-5-(pyrrolidin-1-yl)-2,3-dihydropyridazin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H15BrClN3O2 |
| Molecular Weight | 396.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 3,5-Bis(trifluoromethyl)benzaldehyde O-(2-chloronicotinoyl) oxime (CAS 253178-64-2)
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- (4-(2-Fluorophenyl)piperazin-1-yl)(4-(pyrrolidin-1-ylsulfonyl)phenyl)methanone (CAS 609792-38-3)
- Ethyl 2-(2-chlorophenyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 1426521-20-1)
- 3-Methoxy-4-(pentyloxy)benzonitrile (CAS 938144-54-8)
- Methysergide Maleate (CAS 129-49-7)
- Methyl 4-bromo-3-hydroxybenzo[b]thiophene-2-carboxylate (CAS 33851-32-0)
- Tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene-5-carboxaldehyde (CAS 729-30-6)
- Ethyl1-fluoro-4-oxocyclohexane-1-carboxylate (CAS 1032821-34-3)
- 424789-76-4 1-[1-(Benzenesulfonyl)-1H-indol-3-yl]-2-chloroethan-1-one DTXSID00573825 (CAS 424789-76-4)
- 3-(1H-pyrazol-1-yl)propan-1-amine dihydrochloride (CAS 848655-53-8)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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