| CAS No. | 1421465-41-9 |
| Molecular Formula | C21H26N4O4S |
| Molecular Weight | 430.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 8-(tert-Butyl)-3-(4-(furan-2-carbonyl)piperazine-1-carbonyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one.
8-(tert-Butyl)-3-(4-(furan-2-carbonyl)piperazine-1-carbonyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one (CAS 1421465-41-9), molecular formula C21H26N4O4S and molecular weight 430.52 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H26N4O4S, 8-(tert-Butyl)-3-(4-(furan-2-carbonyl)piperazine-1-carbonyl)-3,4-dihydro-2H,6H-pyrimido[2,1-b][1,3]thiazin-6-one contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 430.52 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.
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.
| Molecular Formula | C21H26N4O4S |
| Molecular Weight | 430.52 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |