N-(3-Hydroxy-4-iodophenyl)methanesulfonamide CAS 1243391-32-3
| CAS No. | 1243391-32-3 |
| Molecular Formula | C7H8INO3S |
| Molecular Weight | 313.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(3-Hydroxy-4-iodophenyl)methanesulfonamide (CAS 1243391-32-3), molecular formula C7H8INO3S and molecular weight 313.11 g/mol, is a CATO reference standard with documented purity and traceability.
N-(3-Hydroxy-4-iodophenyl)methanesulfonamide (C7H8INO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), N-(3-Hydroxy-4-iodophenyl)methanesulfonamide 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 | C7H8INO3S |
| Molecular Weight | 313.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related N Standards
- N-(2-Hydroxy-5-iodophenyl)methanesulfonamide (CAS 1243390-34-2)
- N-(3-Hydroxy-5-iodophenyl)methanesulfonamide (CAS 1243391-36-7)
- 2-Hydroxy-3-iodo-5-oxo-5,6,7,8-tetrahydronaphthalene-1-carbonitrile (CAS 2629357-58-8)
- N-(3-Hydroxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanesulfonamide (CAS 1604802-44-9)
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- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(tetrahydro-2H-pyran-4-yl)thiazol-4-yl)boronate (CAS 2223033-44-9)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-morpholinothiophen-2-yl)boronate (CAS 2223033-16-5)
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