2-Methoxyethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate CAS 445382-16-1
| CAS No. | 445382-16-1 |
| Molecular Formula | C19H19F2NO5 |
| Molecular Weight | 379.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Methoxyethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Methoxyethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate (CAS 445382-16-1) is a high-purity analytical reference standard with the molecular formula C19H19F2NO5 and a molecular weight of 379.35 g/mol.
Based on its molecular formula C19H19F2NO5, 2-Methoxyethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate 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 379.35 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.
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 | C19H19F2NO5 |
| Molecular Weight | 379.35 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Methoxyethyl Standards
- 2-(7-(2-Methoxyethyl)-8,9-dihydro-7H-[1,2,4]triazolo[4',3':2,3]pyridazino[4,5-b][1,4]oxazin-3-yl)quinolin-8-amine (CAS 1417631-07-2)
- 2-MEthoxyethyl [[[4-(4-chlorobenzoyl)phenyl]amino]carbonyl]-carbamate (CAS 351068-74-1)
- 4-(2-Methoxyethyl)-5-(4-(piperidin-1-ylsulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917749-92-9)
- 2-((1-(2-Methoxyethyl)-5-phenyl-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide (CAS 1207039-60-8)
- 2-((5-(3-(2-Methoxyethyl)ureido)-1,3,4-thiadiazol-2-yl)thio)-N-(thiazol-2-yl)acetamide (CAS 1171061-11-2)
- 8-((2-Methoxyethyl)thio)-3-methyl-7-(3-phenylpropyl)-3,7-dihydro-1H-purine-2,6-dione (CAS 489464-12-2)
- 4-(2-Methoxyethyl)-5-(4-(morpholinosulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917749-95-2)
- 4-(3-(2-Methoxyethyl)-1,2,4-oxadiazol-5-yl)-N-(3-phenylpropyl)piperidine-1-carboxamide (CAS 1428352-91-3)
Recommended Standards
- {(2E)-3-Oxo-2-[4-(trifluoromethyl)benzylidene]-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetic acid (CAS 900345-90-6)
- Methyl 5-(3-(trifluoromethyl)benzamido)benzo[b]thiophene-2-carboxylate (CAS 477847-54-4)
- 4-bromo-6-chloro-2-fluoro-3-iodobenzoic acid (CAS 1160573-32-9)
- Gonyautoxin 5 (CAS 64296-25-9)
- 6-Formyl-2-naphthoic acid (CAS 5084-45-7)
- 6-Bromo-2-chloroquinazoline (CAS 882672-05-1)
- 1-(2,5-Dimethyl-4-(2-nitrophenyl)furan-3-yl)ethanone (CAS 88484-92-8)
- 3-(Aminomethyl)-5-cyclopropoxypyridine-2-sulfonamide (CAS 1243452-79-0)
- (3-Fluoro-5-morpholinophenyl)boronic acid (CAS 1217500-95-2)
- 2-(1-Phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)cyclopentanone (CAS 62141-19-9)
- Ceftazidime Impurity 107 (CAS CATO-C4X-1212107)
- 6-Pentylpyridazine-3-carboxylic acid (CAS 89967-34-0)
- 4-Chloro-2-methyl-1H-imidazole (CAS 16265-06-8)
- Cyclolinopeptide B (CAS 193139-41-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com