| CAS No. | 1521159-33-0 |
| Molecular Formula | C24H18N6O4 |
| Molecular Weight | 454.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 1521159-33-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C24H18N6O4. Molecular weight: 454.44 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
| Molecular Formula | C24H18N6O4 |
| Molecular Weight | 454.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 6 |