1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 101830-83-5
| CAS No. | 101830-83-5 |
| Molecular Formula | C12H9F2NO3 |
| Molecular Weight | 253.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid.
1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 101830-83-5), molecular formula C12H9F2NO3 and molecular weight 253.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H9F2NO3, 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 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 | C12H9F2NO3 |
| Molecular Weight | 253.20 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, 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.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 6,8-difluoro-4-hydroxyquinoline-3-carboxylate (CAS 107555-38-4)
- Ethyl 6,7-difluoro-4-hydroxyquinoline-3-carboxylate (CAS 111760-35-1)
- Ethyl 6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 121873-01-6)
- 3,4-Difluoro-N-((3-methyl-1,2,4-oxadiazol-5-yl)methyl)benzamide (CAS 1234981-40-8)
- 1-Ethyl-5,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 1267361-62-5)
- 2-((5,8-Difluoro-2-methylquinolin-4-yl)oxy)acetic acid (CAS 1315346-53-2)
- Methyl 6,7-difluoro-4-methoxyquinoline-2-carboxylate (CAS 1325307-24-1)
- Ethyl 5,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 185011-67-0)
Recommended Standards
- (R)-2-(3-fluoro-4-(trifluoromethoxy)phenyl)-2-(methylamino)ethan-1-ol (CAS 1335955-69-5)
- 1-(2,6-Difluorobenzyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 106308-50-3)
- 3-Fluoro-alpha-(methoxymethyl)-4-(trifluoromethoxy)benzylamine (CAS 1273653-26-1)
- (S)-1-(3-fluoro-4-(trifluoromethoxy)phenyl)-2-methoxyethan-1-amine (CAS 1272741-70-4)
- 5-Methylpyridine-3-boronic acid hydrochloride (CAS 2377611-80-6)
- 1-(1H-Benzo[d]imidazol-5-yl)-N-methylmethanamine (CAS 886851-32-7)
- 2-(6-Chloropyrimidin-4-yl)propan-2-ol (CAS 1289106-79-1)
- 4-Chloro-6-(methoxy(methyl)amino)-N,N-dimethyl-1,3,5-triazin-2-amine (CAS 7802-74-6)
- 3-(5-Methylpyridin-2-yl)prop-2-enoic acid (CAS 1335225-09-6)
- Formoterol impurity 146 (CAS CATO-C4X-1525146)
- Heteroclitin B (CAS 140461-47-8)
- 5,7-Dichloro-3-iodo-1H-pyrazolo[3,4-c]pyridine (CAS 1934666-20-2)
- 4-Methyl-2-(3-oxopiperazin-1-yl)pyrimidine-5-carboxylic acid (CAS 1355202-34-4)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com