6-Bromo-4,5-dichloropyridazin-3(2H)-one CAS 933041-14-6

Purity 97%+In StockPharmaceutical Standards
CAS No.933041-14-6
Molecular FormulaC4HBrCl2N2O
Molecular Weight243.87 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Bromo-4,5-dichloropyridazin-3(2H)-one CAS 933041-14-6 chemical structure

Description

The occurrence of 6-Bromo-4,5-dichloropyridazin-3(2H)-one is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

6-Bromo-4,5-dichloropyridazin-3(2H)-one (CAS 933041-14-6) is a high-purity analytical reference standard with the molecular formula C4HBrCl2N2O and a molecular weight of 243.87 g/mol.

Structurally, 6-Bromo-4,5-dichloropyridazin-3(2H)-one (C4HBrCl2N2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 243.87 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC4HBrCl2N2O
Molecular Weight243.87 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1987
Halogen ContentCl/Br-containing
Nitrogen Atoms2

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