Ethyl 3-(((((4-fluorobenzyl)oxy)amino)methylene)amino)-4-methoxythieno[2,3-b]pyridine-2-carboxylate CAS 341966-70-9
| CAS No. | 341966-70-9 |
| Molecular Formula | C19H18FN3O4S |
| Molecular Weight | 403.43 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 Ethyl 3-(((((4-fluorobenzyl)oxy)amino)methylene)amino)-4-methoxythieno[2,3-b]pyridine-2-carboxylate (CAS 341966-70-9), a certified reference material (molecular formula C19H18FN3O4S, MW 403.43 g/mol) for analytical method development and quality control.
Ethyl 3-(((((4-fluorobenzyl)oxy)amino)methylene)amino)-4-methoxythieno[2,3-b]pyridine-2-carboxylate (C19H18FN3O4S) contains a flavonoid 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.
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 | C19H18FN3O4S |
| Molecular Weight | 403.43 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 11-Bromoundecanal (CAS 70326-40-8)
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- 1-(5-Methylthiophen-2-yl)-N-(pyridin-2-ylmethyl)methanamine hydrochloride (CAS 1050213-87-0)
- 4-Thiomorpholinomethyl-2-trifluoromethyl-benzophenone (CAS 898782-96-2)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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