4-Oxo-2-phenyl-1,4-dihydroquinoline-3-carboxylic acid CAS 52980-24-2
| CAS No. | 52980-24-2 |
| Molecular Formula | C16H11NO3 |
| Molecular Weight | 265.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Oxo-2-phenyl-1,4-dihydroquinoline-3-carboxylic acid (CAS 52980-24-2), molecular formula C16H11NO3 and molecular weight 265.26 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H11NO3, 4-Oxo-2-phenyl-1,4-dihydroquinoline-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 265.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Formula | C16H11NO3 |
| Molecular Weight | 265.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 4-Hydroxy-6-phenyl-3-quinolinecarboxylic acid (CAS 35975-92-9)
- 4-Oxo-2-phenyl-1,4-dihydroquinoline-8-carboxylic acid (CAS 90034-64-3)
- 4-Hydroxy-3-[(E)-(phenylimino)methyl]-2H-chromen-2-one (CAS 360762-44-3)
- 4-oxo-8-Phenyl-1,4-dihydroquinoline-3-carboxylic acid (CAS 57278-48-5)
- Methyl 2-(4-hydroxy-2-methylphenoxy)acetate (CAS 317319-10-1)
- 3-(2-Chloro-6-fluorobenzyl)-2,4-dimethoxybenzaldehyde (CAS 338393-86-5)
- Butanoic acid, 4-(phenylmethoxy)-, 2,5-dioxo-1-pyrrolidinyl ester (CAS 183946-69-2)
- n-(2-Bromophenyl)-2-chloropropanamide (CAS 206054-36-6)
- 5-Ethyl-8-oxo-2,3,5,8-tetrahydrofuro[2,3-g]quinoline-7-carboxylic acid (CAS 35067-47-1)
- tert-Butyl (4-(trifluoromethyl)phenyl)carbamate (CAS 141940-37-6)
- 1-Phenyl-3-(quinolin-8-ylamino)propan-1-one (CAS 62365-94-0)
- 898749-38-7 (2-Chloro-4-fluorophenyl){3-[(2,5-dihydro-1H-pyrrol-1-yl)methyl]phenyl}methanone DTXSID80643499 (CAS 898749-38-7)
- 4-(((4-Butoxyphenyl)imino)methyl)benzonitrile (CAS 55873-21-7)
- Human glucagon CRS (CAS 9007-92-5)
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