(R)-2-(4-Chlorobenzamido)-3-(2-oxo-1,2-dihydroquinolin-4-yl)propanoic acid CAS 111911-90-1
| CAS No. | 111911-90-1 |
| Molecular Formula | C19H23ClN2O4 |
| Molecular Weight | 378.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H23ClN2O4, (R)-2-(4-Chlorobenzamido)-3-(2-oxo-1,2-dihydroquinolin-4-yl)propanoic acid contains a flavonoid core, 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 378.85 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.
CATO supplies (R)-2-(4-Chlorobenzamido)-3-(2-oxo-1,2-dihydroquinolin-4-yl)propanoic acid (CAS 111911-90-1), a certified reference material (molecular formula C19H23ClN2O4, MW 378.85 g/mol) for analytical method development and quality control.
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 | C19H23ClN2O4 |
| Molecular Weight | 378.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related R Standards
- Ethyl 2-(2-chlorobenzamido)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate (CAS 312949-43-2)
- Ethyl 2-(2-chlorobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 331760-66-8)
- Ethyl 2-(4-chlorobenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 299962-45-1)
- 5-(4-Chlorobenzamido)-4-cyano-N,N-diethyl-3-methylthiophene-2-carboxamide (CAS 419558-74-0)
- 3-(4-Chlorobenzamido)-4-ethoxybenzenesulfonyl chloride (CAS 680618-29-5)
- 5-(4-Chlorobenzamido)-2-ethoxybenzenesulfonyl chloride (CAS 680617-88-3)
- Ethyl 2-(2-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 331760-72-6)
- Ethyl 2-(4-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 77261-20-2)
Recommended Standards
- 1,2-Dichloro-4-iodoperfluorobutane (CAS 678-13-7)
- tert-Butyl 4-{[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl}piperazine-1-carboxylate (CAS 1170433-01-8)
- (±)-Chlorophacinone-d4 (indanedione-4,5,6,7-d4) (CAS 1219805-75-0)
- 4-(4-tert-Butylphenyl)-2-[(4-chlorophenyl)amino]-6-oxo-1,6-dihydropyrimidine-5-carbonitrile (CAS 1347333-77-0)
- Bromobenzene-d5 (CAS 4165-57-5)
- N1-(4-Chlorobenzyl)-N1-methylethane-1,2-diamine (CAS 1096795-70-8)
- Alprazolam Impurity 7 (CAS 1346606-48-1)
- 2-(3,4,5-Trimethoxyphenyl)-2,3-dihydrofuran (CAS 117528-77-5)
- 4-Bromo-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1379358-35-6)
- 1-Ethoxy-2-fluoro-4-iodobenzene (CAS 1208075-88-0)
- Methyl({5h,6h,7h-pyrrolo[2,1-c][1,2,4]triazol-3-ylmethyl})amine (CAS 923687-30-3)
- 4-[(1-methyl-1H-1,2,4-triazol-5-yl)methoxy]benzene-1-sulfonamide (CAS 1423033-49-1)
- (S)-1-Ethyl-5-methylpiperazin-2-one hydrochloride (CAS 869901-73-5)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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