7-Cyclohexyl-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 55376-50-6

Purity 97%+In StockPharmaceutical Standards
CAS No.55376-50-6
Molecular FormulaC18H21NO3
Molecular Weight299.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Cyclohexyl-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 55376-50-6 chemical structure

Description

As a certified reference material (CRM), 7-Cyclohexyl-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 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.

CATO supplies 7-Cyclohexyl-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 55376-50-6), a certified reference material (molecular formula C18H21NO3, MW 299.36 g/mol) for analytical method development and quality control.

Based on its molecular formula C18H21NO3, 7-Cyclohexyl-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC18H21NO3
Molecular Weight299.36 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
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms1

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