| CAS No. | 625377-74-4 |
| Molecular Formula | C22H14F3N3O3S |
| Molecular Weight | 457.43 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.
(3-Amino-6-(pyridin-4-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridin-2-yl)(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanone (CAS 625377-74-4) is a high-purity analytical reference standard with the molecular formula C22H14F3N3O3S and a molecular weight of 457.43 g/mol.
(3-Amino-6-(pyridin-4-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridin-2-yl)(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanone (C22H14F3N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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. 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.
| Molecular Formula | C22H14F3N3O3S |
| Molecular Weight | 457.43 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |