Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate CAS 892284-23-0
| CAS No. | 892284-23-0 |
| Molecular Formula | C18H13N3O3S |
| Molecular Weight | 351.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate.
Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate (CAS 892284-23-0) is a high-purity analytical reference standard with the molecular formula C18H13N3O3S and a molecular weight of 351.38 g/mol.
Based on its molecular formula C18H13N3O3S, Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate contains a steroid 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 351.38 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.
Physical & Chemical Properties
| Molecular Formula | C18H13N3O3S |
| Molecular Weight | 351.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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