| CAS No. | 1427514-99-5 |
| Molecular Formula | C21H19NO7 |
| Molecular Weight | 397.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(S)-2-(((Benzyloxy)carbonyl)amino)-4-(7-hydroxy-2-oxo-2H-chromen-4-yl)butanoic acid (CAS 1427514-99-5), molecular formula C21H19NO7 and molecular weight 397.38 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-2-(((Benzyloxy)carbonyl)amino)-4-(7-hydroxy-2-oxo-2H-chromen-4-yl)butanoic acid (C21H19NO7) contains a flavonoid core, an amide 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-2-(((Benzyloxy)carbonyl)amino)-4-(7-hydroxy-2-oxo-2H-chromen-4-yl)butanoic acid 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.
| Molecular Formula | C21H19NO7 |
| Molecular Weight | 397.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |