Ethyl 6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate CAS 79607-22-0
| CAS No. | 79607-22-0 |
| Molecular Formula | C12H10ClNO3 |
| Molecular Weight | 251.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 251.67 g/mol gives Ethyl 6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 79607-22-0) is a high-purity analytical reference standard with the molecular formula C12H10ClNO3 and a molecular weight of 251.67 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Ethyl 6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10ClNO3 |
| Molecular Weight | 251.67 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, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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- Methyl 7-chloro-4-hydroxy-8-methylquinoline-2-carboxylate (CAS 1065074-49-8)
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Recommended Standards
- Ethyl 6-chloro-4-hydroxyquinoline-3-carboxylate (CAS 70271-77-1)
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- Ethyl 6-chloro-3-formyl-1H-indole-2-carboxylate (CAS 586336-88-1)
- Ethyl 7-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 54132-35-3)
- 5-(tert-Butyl) 3-ethyl 2-methyl-2,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridine-3,5-dicarboxylate (CAS 1706449-45-7)
- 3-Aminophenyl diethyl phosphate (CAS 97164-68-6)
- Methyl 2-{3-[4-(trifluoromethoxy)phenyl]phenyl}acetate (CAS 1820735-92-9)
- 4-((2-Hydroxybenzylidene)amino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one (CAS 30957-66-5)
- CAS 2260670-66-2 (CAS 2260670-66-2)
- 2-((4-Methylcyclohexyl)amino)cyclohexan-1-ol (CAS 1179954-91-6)
- Ethyl 5-(4-butylphenyl)-5-oxopentanoate (CAS 138247-13-9)
- (R)-2-(1-Hydroxypropan-2-yl)isoindoline-1,3-dione (CAS 73323-91-8)
- 3-Methyl-6-phenyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 923884-15-5)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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