| CAS No. | 143383-65-7 |
| Molecular Formula | C21H26FN3O4 |
| Molecular Weight | 403.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
CATO supplies 1-Cyclopropyl-6-fluoro-8-methoxy-7-((R)-3-((S)-1-(methylamino)ethyl)pyrrolidin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 143383-65-7), a certified reference material (molecular formula C21H26FN3O4, MW 403.45 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H26FN3O4, 1-Cyclopropyl-6-fluoro-8-methoxy-7-((R)-3-((S)-1-(methylamino)ethyl)pyrrolidin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid contains a flavonoid 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 403.45 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C21H26FN3O4 |
| Molecular Weight | 403.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |