7-Methyl-N-(6-methylpyridin-2-yl)-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide CAS 1396849-75-4
| CAS No. | 1396849-75-4 |
| Molecular Formula | C15H16N4O2S |
| Molecular Weight | 316.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Methyl-N-(6-methylpyridin-2-yl)-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
7-Methyl-N-(6-methylpyridin-2-yl)-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (CAS 1396849-75-4), molecular formula C15H16N4O2S and molecular weight 316.38 g/mol, is a CATO reference standard with documented purity and traceability.
7-Methyl-N-(6-methylpyridin-2-yl)-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (C15H16N4O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C15H16N4O2S |
| Molecular Weight | 316.38 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Recommended Standards
- 7-Methyl-6-oxo-N-(pyridin-2-ylmethyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (CAS 1396849-59-4)
- 4-Methyl-N-(2-(3-methylisoxazol-5-yl)ethyl)-2-(1H-pyrrol-1-yl)thiazole-5-carboxamide (CAS 1421472-50-5)
- 7-Methyl-N-(3-methylpyridin-2-yl)-6-oxo-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazine-3-carboxamide (CAS 1396635-68-9)
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