Ethyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate CAS 939889-05-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 939889-05-1 |
| Molecular Formula | C21H16N2O6S |
| Molecular Weight | 424.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939889-05-1) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H16N2O6S. Molecular weight: 424.43 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H16N2O6S |
| Molecular Weight | 424.43 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939894-10-7)
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