2-(1,5-Dimethyl-1H-pyrazol-4-yl)-2,3-dihydro-3-hydroxy-4(1H)-quinazolinone CAS 512809-32-4
| CAS No. | 512809-32-4 |
| Molecular Formula | C13H14N4O2 |
| Molecular Weight | 258.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-(1,5-Dimethyl-1H-pyrazol-4-yl)-2,3-dihydro-3-hydroxy-4(1H)-quinazolinone (C13H14N4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 258.28 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(1,5-Dimethyl-1H-pyrazol-4-yl)-2,3-dihydro-3-hydroxy-4(1H)-quinazolinone (CAS 512809-32-4), molecular formula C13H14N4O2 and molecular weight 258.28 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C13H14N4O2 |
| Molecular Weight | 258.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
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- 2’,3’-Di(9-phenylxanthen-9-yl)dithiouridine (CAS 156592-88-0)
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- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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