4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide CAS 24683-22-5
| CAS No. | 24683-22-5 |
| Molecular Formula | C9H8N2O4S |
| Molecular Weight | 240.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide (CAS 24683-22-5), a certified reference material (molecular formula C9H8N2O4S, MW 240.24 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 240.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-Dioxide 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.
Physical & Chemical Properties
| Molecular Formula | C9H8N2O4S |
| Molecular Weight | 240.24 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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- 2-Hydroxy-4-isopropyl-3,5-dimethoxybenzoic acid (CAS 1352034-26-4)
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Recommended Standards
- 4-Amino-N-(1,2,4-oxadiazol-3-yl)benzenesulfonamide (CAS 856648-95-8)
- 4-Methyl-3-(methylthio)-5-(5-nitrofuran-2-yl)-4H-1,2,4-triazole (CAS 41735-55-1)
- 4-(5-Oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 34797-30-3)
- 5-Amino-6-hydroxyquinoline-8-sulfonic acid (CAS 855765-74-1)
- 2-[4-(Acetylamino)phenyl]-2,3-dihydro-1,3-dioxo-1H-isoindole-5-carboxylic acid (CAS 49587-52-2)
- 1-(3-chloro-4-fluorophenyl)-2,2,2-trifluoroethan-1-amine hydrochloride (CAS 1798725-72-0)
- (R)-5-(Piperidine-1-carbonyl)pyrrolidin-2-one (CAS 110958-19-5)
- 3-(Benzo[d]oxazol-2-yl)-7-hydroxy-2-oxo-2H-chromene-4-carbonitrile (CAS 90146-01-3)
- 3-(3,4,5-Trimethoxyphenyl)-1H-pyrazole (CAS 150433-18-4)
- (E)-2-(3-Fluorostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 633327-36-3)
- 2,6-Diamino-4-(difluoromethyl)pyridine-3-sulfonamide (CAS 1806864-42-5)
- (4-(Benzyloxy)-1-(4-fluorophenyl)-1H-pyrazol-3-yl)(pyrrolidin-1-yl)methanone (CAS 1172443-07-0)
- 2-(Aminomethyl)-4-isopropylphenol (CAS 92188-39-1)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
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