2-Methyl-4-oxo-1-propyl-1,4-dihydroquinoline-3-carboxylic acid CAS 922499-40-9

Purity 97%+In StockPharmaceutical Standards
CAS No.922499-40-9
Molecular FormulaC14H15NO3
Molecular Weight245.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-4-oxo-1-propyl-1,4-dihydroquinoline-3-carboxylic acid CAS 922499-40-9 chemical structure

Description

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.

2-Methyl-4-oxo-1-propyl-1,4-dihydroquinoline-3-carboxylic acid (CAS 922499-40-9), molecular formula C14H15NO3 and molecular weight 245.27 g/mol, is a CATO reference standard with documented purity and traceability.

2-Methyl-4-oxo-1-propyl-1,4-dihydroquinoline-3-carboxylic acid (C14H15NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC14H15NO3
Molecular Weight245.27 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms1

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