Ethyl 8-benzoyl-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate CAS 192513-59-0
| CAS No. | 192513-59-0 |
| Molecular Formula | C19H14ClNO4 |
| Molecular Weight | 355.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 8-benzoyl-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 192513-59-0), molecular formula C19H14ClNO4 and molecular weight 355.77 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 8-benzoyl-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (C19H14ClNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 355.77 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.
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.
As a certified reference material (CRM), Ethyl 8-benzoyl-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C19H14ClNO4 |
| Molecular Weight | 355.77 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 4-Benzoyl-7,7-dimethyl-2-phenyl-7,8-dihydroquinolin-5(6H)-one (CAS 54398-79-7)
- 2-(2-Benzoyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)acetic acid (CAS 930395-95-2)
- 3-Benzoyl-6-bromoquinoline-4-carboxylic acid (CAS 444114-73-2)
- N6-Benzoyl-2-deoxyadenosine (CAS 305808-19-9)
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Recommended Standards
- 4-(3-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)phenyl)thiazol-2-amine (CAS 1823182-22-4)
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- n-(3-Chloroquinoxalin-2-yl)-2,5-difluorobenzene-1-sulfonamide (CAS 735322-75-5)
- 3-Chloro-2-((1-phenyl-1H-imidazol-2-yl)thio)-5-(trifluoromethyl)pyridine (CAS 338411-88-4)
- Ethylene Glycol monostearate (CAS 111-60-4)
- N-(4-Chloro-1-methyl-1H-pyrazol-3-yl)-N-hexylacetamide (CAS 63127-98-0)
- (1-Trifluoromethanesulfonylpiperidin-4-yl)methanamine (CAS 1154673-58-1)
- N-(2,6-Dichloroisonicotinoyl)-N'-(4-fluorophenyl)thiourea (CAS 646456-16-8)
- 5-Methyl-7-nitro-1H-indazole (CAS 113302-88-8)
- 5-Methyl-1,2,3-oxadiazole-4-carbonyl chloride (CAS 914637-79-9)
- 2-(4-Fluoronaphthalen-1-yl)acetic acid (CAS 3833-03-2)
- N-(3-ethynylphenyl)piperidine-4-carboxamide (CAS 1575783-01-5)
- 4-[(2-Naphthyloxy)methyl]benzoic acid (CAS 149288-37-9)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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