2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid CAS 90034-73-4

Purity 97%+In StockPharmaceutical Standards
CAS No.90034-73-4
Molecular FormulaC16H9Cl2NO3
Molecular Weight334.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid CAS 90034-73-4 chemical structure

Description

The occurrence of 2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid (CAS 90034-73-4), molecular formula C16H9Cl2NO3 and molecular weight 334.15 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid (C16H9Cl2NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 334.15 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC16H9Cl2NO3
Molecular Weight334.15 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Halogen ContentCl-containing
Nitrogen Atoms1

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