| CAS No. | 685107-16-8 |
| Molecular Formula | C25H21ClN4O3 |
| Molecular Weight | 460.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-(4-Chlorophenyl)-11,12-dimethoxy-8,9,13b,14-tetrahydro-6H-pyrazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one (CAS 685107-16-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C25H21ClN4O3. Molecular weight: 460.91 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
| Molecular Formula | C25H21ClN4O3 |
| Molecular Weight | 460.91 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |