| CAS No. | 281223-40-3 |
| Molecular Formula | C20H15FN3O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 399.81 g/mol gives 1-[4-(3-fluoroanilino)-1-(2-furylmethyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]pyridinium chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-[4-(3-fluoroanilino)-1-(2-furylmethyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]pyridinium chloride (CAS 281223-40-3), molecular formula C20H15FN3O3Cl and molecular weight 399.81 g/mol, is a CATO reference standard with documented purity and traceability.
1-[4-(3-fluoroanilino)-1-(2-furylmethyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]pyridinium chloride (C20H15FN3O3Cl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 1-[4-(3-fluoroanilino)-1-(2-furylmethyl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]pyridinium chloride 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.
| Molecular Formula | C20H15FN3O3 Cl |
| Molecular Weight | 399.81 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |