6-Fluoro-1-(4-fluoro-2-methylphenyl)-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid CAS 164662-40-2
| CAS No. | 164662-40-2 |
| Molecular Formula | C21H19F2N3O3 |
| Molecular Weight | 399.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 6-Fluoro-1-(4-fluoro-2-methylphenyl)-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 164662-40-2), a certified reference material (molecular formula C21H19F2N3O3, MW 399.39 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H19F2N3O3, 6-Fluoro-1-(4-fluoro-2-methylphenyl)-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid contains a steroid core, 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 399.39 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.
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 | C21H19F2N3O3 |
| Molecular Weight | 399.39 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 |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluoro Standards
- 6-Fluoro-1-(2-fluoro-4-methylphenyl)-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (CAS 164662-41-3)
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- 2-Fluoro-5-methyl-3-(tributylstannyl)pyridine (CAS 1025745-87-2)
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- N-[3-Fluoro-4-(4-phenylpiperazin-1-yl)phenyl]-2-(morpholin-4-yl)acetamide (CAS 692737-20-5)
- 2-Fluoro-N-(6-((2-((2-fluorophenyl)amino)-2-oxoethyl)thio)pyridazin-3-yl)benzamide (CAS 1021060-77-4)
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