2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid CAS 90034-18-7
| CAS No. | 90034-18-7 |
| Molecular Formula | C16H9Cl2NO3 |
| Molecular Weight | 334.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H9Cl2NO3, 2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 334.15 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.
2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-18-7) is a high-purity analytical reference standard with the molecular formula C16H9Cl2NO3 and a molecular weight of 334.15 g/mol.
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 Formula | C16H9Cl2NO3 |
| Molecular Weight | 334.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May 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 Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenyl Standards
- 2-(2-(2,4-Dichlorophenyl)-2-oxoethyl)isoindoline-1,3-dione (CAS 65146-53-4)
- 2-(2,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid (CAS 90034-73-4)
- 2-(2,5-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-23-4)
- 2-(3,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-21-2)
- 2-(3,4-Dichlorophenyl)-4-oxo-1,4-dihydroquinoline-8-carboxylic acid (CAS 90034-74-5)
- 3-(((3,4-Dichlorophenyl)imino)methyl)-4-hydroxy-2H-chromen-2-one (CAS 364617-51-6)
- N-(3,5-Dichlorophenyl)-4-oxo-4H-chromene-2-carboxamide (CAS 476298-52-9)
- (3,4-Dichlorophenyl)(4-(3-fluorophenyl)-1H-pyrrol-3-yl)methanone (CAS 478031-40-2)
Recommended Standards
- 2-(2,4-Dichlorobenzoyl)-3-phenylisoxazol-5(2H)-one (CAS 303987-06-6)
- 1-Ethyl-7-fluoro-6-(tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-quinoxaline-2,3-dione (CAS 2377611-66-8)
- 2-(2,6-Dichlorobenzoyl)-3-phenylisoxazol-5(2H)-one (CAS 303987-09-9)
- (2-Amino-4-iodo-phenyl)-carbamic acid tert-butyl ester (CAS 335255-25-9)
- Phenyl(1-phenyl-1H-1,2,4-triazol-3-yl)methanone (CAS 18011-20-6)
- 4,6-diethylpyrimidine-5-carboxylic acid (CAS 1820685-04-8)
- (4-Ethyl-5-oxo-tetrahydro-furan-3-yl)-acetaldehyde (CAS 144128-27-8)
- 4-Naphthalen-1-ylaniline (CAS 125404-00-4)
- 4-Bromo-6-methoxypyridin-2-amine (CAS 1211526-95-2)
- Methyl 3-(piperidin-4-yl)propanoate hydrochloride (CAS 167414-87-1)
- 5-(tert-Butoxycarbonyl)-2-(cyclopropylmethyl)-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylic acid (CAS 1391732-51-6)
- (17|A)-17-(Benzoyloxy)-4-oxaandrost-5-en-3-one (4aR,4bS,6aS,7S,9aS,9bS)-7-(Benzoyloxy)-4,4a,4b,5,6,6a,7,8,9,9a,9b,10-dodecahydro-4a,6a-dimethyl-cyclopenta[5,6]naphtho[2,1-b]pyran-2(3H)-one 71996-13-9 (CAS 71996-13-9)
- 2-Hydrazinyl-5-(1-methyl-1H-pyrazol-4-yl)pyridine, 97% (CAS 1427473-71-9)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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