| CAS No. | 942047-62-3 |
| Molecular Formula | - |
| Molecular Weight | 272.29 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 Methyl-4-hydroxy-2-methyl-d3-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide.
Methyl-4-hydroxy-2-methyl-d3-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (CAS 942047-62-3) is a high-purity analytical reference standard with the molecular formula C11H8D3NO5S and a molecular weight of 272.29 g/mol.
Structurally, Methyl-4-hydroxy-2-methyl-d3-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide (C11H8D3NO5S) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 272.29 g/mol, it falls into the medium-molecular-weight range. 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 | C11H8D3NO5S |
| Molecular Weight | 272.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |