2-Chloro-5-nitro-N-(4-(quinoxalin-2-yloxy)phenyl)benzamide CAS 647853-12-1

Purity 97%+In StockPharmaceutical Standards
CAS No.647853-12-1
Molecular FormulaC21H13ClN4O4
Molecular Weight420.81 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-5-nitro-N-(4-(quinoxalin-2-yloxy)phenyl)benzamide CAS 647853-12-1 chemical structure

Description

CATO manufactures 2-Chloro-5-nitro-N-(4-(quinoxalin-2-yloxy)phenyl)benzamide 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.

2-Chloro-5-nitro-N-(4-(quinoxalin-2-yloxy)phenyl)benzamide (CAS 647853-12-1) is a high-purity analytical reference standard with the molecular formula C21H13ClN4O4 and a molecular weight of 420.81 g/mol.

The molecular framework of 2-Chloro-5-nitro-N-(4-(quinoxalin-2-yloxy)phenyl)benzamide (C21H13ClN4O4) is characterized by a flavonoid core, 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. 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.

Physical & Chemical Properties

Molecular FormulaC21H13ClN4O4
Molecular Weight420.81 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms4

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