| CAS No. | 685107-13-5 |
| Molecular Formula | C23H20N4O3S |
| Molecular Weight | 432.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
High-purity 18,19-Dimethoxy-7-(thiophen-3-yl)-4,5,9,13-tetraazapentacyclo[11.8.0.0^{3,11}.0^{4,8}.0^{16,21}]henicosa-3(11),5,7,9,16(21),17,19-heptaen-12-one (CAS 685107-13-5) pharmaceutical standards reference standard. Molecular formula: C23H20N4O3S. Molecular weight: 432.49 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
| Molecular Formula | C23H20N4O3S |
| Molecular Weight | 432.49 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |