Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate CAS 1374509-57-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1374509-57-5
Molecular FormulaC21H22ClNO3
Molecular Weight371.86 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate CAS 1374509-57-5 chemical structure

Description

As a certified reference material (CRM), Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate 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.

Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate (CAS 1374509-57-5), molecular formula C21H22ClNO3 and molecular weight 371.86 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate (C21H22ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, 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. 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 FormulaC21H22ClNO3
Molecular Weight371.86 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl-containing
Nitrogen Atoms1

Related Ethyl Standards

Recommended Standards

Why CATO?