4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one CAS 338962-47-3

Purity 97%+In StockPharmaceutical Standards
CAS No.338962-47-3
Molecular FormulaC15H16BrFN4O
Molecular Weight367.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one CAS 338962-47-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one.

4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one (CAS 338962-47-3), molecular formula C15H16BrFN4O and molecular weight 367.22 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one (C15H16BrFN4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 367.22 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), 4-Bromo-2-(4-fluorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC15H16BrFN4O
Molecular Weight367.22 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF/Br-containing
Nitrogen Atoms4

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