1-(5-Chloropyridazin-3-yl)ethan-1-one CAS 2833706-67-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2833706-67-3
Molecular FormulaC6H5ClN2O
Molecular Weight156.57 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(5-Chloropyridazin-3-yl)ethan-1-one CAS 2833706-67-3 chemical structure

Description

1-(5-Chloropyridazin-3-yl)ethan-1-one (CAS 2833706-67-3), molecular formula C6H5ClN2O and molecular weight 156.57 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-(5-Chloropyridazin-3-yl)ethan-1-one (C6H5ClN2O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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), 1-(5-Chloropyridazin-3-yl)ethan-1-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 FormulaC6H5ClN2O
Molecular Weight156.57 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2003
Halogen ContentCl-containing
Nitrogen Atoms2

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Why CATO?