5-(((4-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide CAS 823220-26-4
| CAS No. | 823220-26-4 |
| Molecular Formula | C11H9ClN2O5S |
| Molecular Weight | 316.72 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.
5-(((4-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide (CAS 823220-26-4) is a high-purity analytical reference standard with the molecular formula C11H9ClN2O5S and a molecular weight of 316.72 g/mol.
Based on its molecular formula C11H9ClN2O5S, 5-(((4-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 316.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-(((4-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide 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 | C11H9ClN2O5S |
| Molecular Weight | 316.72 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 5-(((3-Chlorophenyl)sulfonyl)methyl)-N-hydroxyisoxazole-3-carboxamide (CAS 823220-25-3)
- (2Z)-3-(4-Chlorophenyl)-2-cyano-N-(4-fluorophenyl)-3-hydroxyprop-2-enamide (CAS 866151-39-5)
- 1-(2-Chlorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-81-1)
- 1-(3-Chlorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618383-16-7)
- 1-(4-Chlorophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-74-2)
- 3-(4-Chlorophenyl)-1-((4-fluorophenyl)amino)-1H-pyrrole-2,5-dione (CAS 271254-37-6)
- 3-(4-Chlorophenyl)-1-(2-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-55-9)
- 3-(4-Chlorophenyl)-1-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-39-9)
Recommended Standards
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- Iguratimod impurity 96 (CAS CATO-C4X-182696)
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