4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one CAS 175135-84-9

Purity 97%+In StockPharmaceutical Standards
CAS No.175135-84-9
Molecular FormulaC11H9Cl3N4O
Molecular Weight319.57 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one CAS 175135-84-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 319.57 g/mol gives 4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one (CAS 175135-84-9), a certified reference material (molecular formula C11H9Cl3N4O, MW 319.57 g/mol) for analytical method development and quality control.

The molecular framework of 4-Chloro-2-(3,5-dichlorophenyl)-5-(1-methylhydrazino)-2,3-dihydropyridazin-3-one (C11H9Cl3N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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.

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 FormulaC11H9Cl3N4O
Molecular Weight319.57 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2007
Halogen ContentCl-containing
Nitrogen Atoms4

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