1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide CAS 300716-28-3

Purity 97%+In StockPharmaceutical Standards
CAS No.300716-28-3
Molecular FormulaC20H18Cl2N2O3
Molecular Weight405.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide CAS 300716-28-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 405.27 g/mol gives 1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 300716-28-3), molecular formula C20H18Cl2N2O3 and molecular weight 405.27 g/mol, is a CATO reference standard with documented purity and traceability.

1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide (C20H18Cl2N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

CATO manufactures 1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide 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.

Physical & Chemical Properties

Molecular FormulaC20H18Cl2N2O3
Molecular Weight405.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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