9-Methyl-1,11-dihydro-2H-pyrimido[4,5-a]carbazol-2-one CAS 248246-45-9
| CAS No. | 248246-45-9 |
| Molecular Formula | C15H11N3O |
| Molecular Weight | 249.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
9-Methyl-1,11-dihydro-2H-pyrimido[4,5-a]carbazol-2-one (CAS 248246-45-9), molecular formula C15H11N3O and molecular weight 249.27 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C15H11N3O, 9-Methyl-1,11-dihydro-2H-pyrimido[4,5-a]carbazol-2-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H11N3O |
| Molecular Weight | 249.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 10-Methyl-1,11-dihydro-2H-pyrimido[4,5-a]carbazol-2-one (CAS 248246-46-0)
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