| CAS No. | 1574585-05-9 |
| Molecular Formula | C20H19Cl2N3O2 |
| Molecular Weight | 404.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
N-(3,4-Dichlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574585-05-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H19Cl2N3O2. Molecular weight: 404.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
| Molecular Formula | C20H19Cl2N3O2 |
| Molecular Weight | 404.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |