N-(4-fluorophenyl)-4-hydroxy-1-methyl-1H-benzo[c][1,2]thiazine-3-carboxamide 2,2-dioxide CAS 320423-81-2
| CAS No. | 320423-81-2 |
| Molecular Formula | C16H13FN2O4S |
| Molecular Weight | 348.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies N-(4-fluorophenyl)-4-hydroxy-1-methyl-1H-benzo[c][1,2]thiazine-3-carboxamide 2,2-dioxide (CAS 320423-81-2), a certified reference material (molecular formula C16H13FN2O4S, MW 348.35 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, N-(4-fluorophenyl)-4-hydroxy-1-methyl-1H-benzo[c][1,2]thiazine-3-carboxamide 2,2-dioxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 348.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H13FN2O4S |
| Molecular Weight | 348.35 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Ethyl (2-benzoylbenzofuran-3-yl)(cyanomethyl)carbamate (CAS 88737-34-2)
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- BOc-d-phg-osu (CAS 39249-27-9)
- Porfiromycin - API Standards (CAS 801-52-5)
- 4-Chloroquinoline-7-carboxylic Acid (CAS 49713-58-8)
- 5-Amino-2-(p-tolyl)-2H-benzotriazole (CAS 6659-91-2)
- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)(3,5-dichlorophenyl)methanone (CAS 898778-96-6)
- Valsartan Impurity 127 (CAS CATO-C4X-1057127)
- 5-Amino-1-(2,6-dichlorophenyl)-1H-pyrazole-4-carbonitrile (CAS 792953-01-6)
- 1-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)-2,2,2-trifluoroethan-1-one (CAS 1354954-37-2)
- (6-(Dimethylamino)-4-fluoropyridin-3-yl)boronic acid (CAS 2225176-83-8)
- Cefaclor Impurity 24 (CAS 142975-51-7)
- 2-Ethoxy-6-methoxyaniline (CAS 344296-52-2)
- (D-Trp32)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 153549-78-1)
Why CATO?
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