| CAS No. | 900014-76-8 |
| Molecular Formula | C23H23N5O4 |
| Molecular Weight | 433.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2-{3-[4-methyl-6-oxo-2-(3-oxo-2,3,4,5,6,7-hexahydro-1H-indazol-2-yl)-1,6-dihydropyrimidin-5-yl]propyl}-2,3-dihydro-1H-isoindole-1,3-dione (CAS 900014-76-8) is a high-purity analytical reference standard with the molecular formula C23H23N5O4 and a molecular weight of 433.46 g/mol.
The molecular framework of 2-{3-[4-methyl-6-oxo-2-(3-oxo-2,3,4,5,6,7-hexahydro-1H-indazol-2-yl)-1,6-dihydropyrimidin-5-yl]propyl}-2,3-dihydro-1H-isoindole-1,3-dione (C23H23N5O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C23H23N5O4 |
| Molecular Weight | 433.46 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |