Methyl 3-(2-oxo-2H-chromene-3-carboxamido)thiophene-2-carboxylate CAS 328270-77-5
| CAS No. | 328270-77-5 |
| Molecular Formula | C16H11NO5S |
| Molecular Weight | 329.33 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.
Methyl 3-(2-oxo-2H-chromene-3-carboxamido)thiophene-2-carboxylate (CAS 328270-77-5) is a high-purity analytical reference standard with the molecular formula C16H11NO5S and a molecular weight of 329.33 g/mol.
Methyl 3-(2-oxo-2H-chromene-3-carboxamido)thiophene-2-carboxylate (C16H11NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Methyl 3-(2-oxo-2H-chromene-3-carboxamido)thiophene-2-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H11NO5S |
| Molecular Weight | 329.33 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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