N-(4-(1H-Tetrazol-1-yl)phenyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide CAS 1428374-07-5
| CAS No. | 1428374-07-5 |
| Molecular Formula | C14H13N7O2 |
| Molecular Weight | 311.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(4-(1H-Tetrazol-1-yl)phenyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide (CAS 1428374-07-5) is a high-purity analytical reference standard with the molecular formula C14H13N7O2 and a molecular weight of 311.30 g/mol.
The molecular framework of N-(4-(1H-Tetrazol-1-yl)phenyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-3-carboxamide (C14H13N7O2) is characterized by a nitrogen-containing heterocyclic scaffold, 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).
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 | C14H13N7O2 |
| Molecular Weight | 311.30 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 7 |
Recommended Standards
- 1-[5-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 1351398-62-3)
- 1-tert-Butyl 3-ethyl trans-4-(trifluoromethyl)pyrrolidine-1,3-dicarboxylate (CAS 1428776-53-7)
- 1-(4-(3-Cyclopropyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 1338652-75-7)
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- N-(4-Methyl-2-oxo-2H-chromen-7-yl)acetamide (CAS 66611-72-1)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
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